1097551921752 has 512 divisors, whose sum is σ = 3622268160000. Its totient is φ = 303555133440.

The previous prime is 1097551921729. The next prime is 1097551921757. The reversal of 1097551921752 is 2571291557901.

1097551921752 is a `hidden beast` number, since 1 + 0 + 9 + 75 + 519 + 2 + 1 + 7 + 52 = 666.

1097551921752 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1097551921757) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1832306749 + ... + 1832307347.

It is an arithmetic number, because the mean of its divisors is an integer number (7074742500).

Almost surely, 2^{1097551921752} is an apocalyptic number.

1097551921752 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1097551921752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1811134080000).

1097551921752 is an abundant number, since it is smaller than the sum of its proper divisors (2524716238248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1097551921752 is a wasteful number, since it uses less digits than its factorization.

1097551921752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1208 (or 1198 counting only the distinct ones).

The product of its (nonzero) digits is 1984500, while the sum is 54.

The spelling of 1097551921752 in words is "one trillion, ninety-seven billion, five hundred fifty-one million, nine hundred twenty-one thousand, seven hundred fifty-two".