1375751231856 has 160 divisors (see below), whose sum is σ = 3977341416000. Its totient is φ = 455285698560.

The previous prime is 1375751231839. The next prime is 1375751231857. The reversal of 1375751231856 is 6581321575731.

1375751231856 is a `hidden beast` number, since 1 + 3 + 7 + 575 + 1 + 2 + 3 + 18 + 56 = 666.

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 (1375751231857) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 183895636 + ... + 183903116.

It is an arithmetic number, because the mean of its divisors is an integer number (24858383850).

Almost surely, 2^{1375751231856} is an apocalyptic number.

1375751231856 is a gapful number since it is divisible by the number (16) 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 1375751231856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1988670708000).

1375751231856 is an abundant number, since it is smaller than the sum of its proper divisors (2601590184144).

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

1375751231856 is a wasteful number, since it uses less digits than its factorization.

1375751231856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10504 (or 10492 counting only the distinct ones).

The product of its digits is 5292000, while the sum is 54.

The spelling of 1375751231856 in words is "one trillion, three hundred seventy-five billion, seven hundred fifty-one million, two hundred thirty-one thousand, eight hundred fifty-six".