7451799552 has 208 divisors, whose sum is σ = 22604538880. Its totient is φ = 2424619008.

The previous prime is 7451799547. The next prime is 7451799599. The reversal of 7451799552 is 2559971547.

It is a happy number.

7451799552 is a `hidden beast` number, since 74 + 5 + 17 + 9 + 9 + 552 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4754673 + ... + 4756239.

Almost surely, 2^7451799552 is an apocalyptic number.

7451799552 is a gapful number since it is divisible by the number (72) 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 7451799552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11302269440).

7451799552 is an abundant number, since it is smaller than the sum of its proper divisors (15152739328).

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

7451799552 is a wasteful number, since it uses less digits than its factorization.

7451799552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1643 (or 1615 counting only the distinct ones).

The product of its digits is 3969000, while the sum is 54.

The square root of 7451799552 is about 86323.8064035640. The cubic root of 7451799552 is about 1953.2315081116.

The spelling of 7451799552 in words is "seven billion, four hundred fifty-one million, seven hundred ninety-nine thousand, five hundred fifty-two".