1087572173526 has 48 divisors (see below), whose sum is σ = 2368987717824. Its totient is φ = 360589059072.

The previous prime is 1087572173521. The next prime is 1087572173537. The reversal of 1087572173526 is 6253712757801.

1087572173526 is a `hidden beast` number, since 1 + 0 + 8 + 7 + 572 + 17 + 3 + 52 + 6 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1087572173521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26093235 + ... + 26134881.

It is an arithmetic number, because the mean of its divisors is an integer number (49353910788).

Almost surely, 2^{1087572173526} is an apocalyptic number.

1087572173526 is an abundant number, since it is smaller than the sum of its proper divisors (1281415544298).

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

1087572173526 is a wasteful number, since it uses less digits than its factorization.

1087572173526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49365 (or 49362 counting only the distinct ones).

The product of its (nonzero) digits is 4939200, while the sum is 54.

The spelling of 1087572173526 in words is "one trillion, eighty-seven billion, five hundred seventy-two million, one hundred seventy-three thousand, five hundred twenty-six".