87572701025649 has 12 divisors (see below), whose sum is σ = 144564458836096. Its totient is φ = 50041543443192.

The previous prime is 87572701025591. The next prime is 87572701025653. The reversal of 87572701025649 is 94652010727578.

87572701025649 is a `hidden beast` number, since 8 + 7 + 57 + 2 + 7 + 0 + 10 + 2 + 564 + 9 = 666.

It is not a de Polignac number, because 87572701025649 - 2⁹ = 87572701025137 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63), and also a Moran number because the ratio is a prime number: 1390042873423 = 87572701025649 / (8 + 7 + 5 + 7 + 2 + 7 + 0 + 1 + 0 + 2 + 5 + 6 + 4 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87572701025549) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 695021436649 + ... + 695021436774.

Almost surely, 2^{87572701025649} is an apocalyptic number.

It is an amenable number.

87572701025649 is a deficient number, since it is larger than the sum of its proper divisors (56991757810447).

87572701025649 is a wasteful number, since it uses less digits than its factorization.

87572701025649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1390042873436 (or 1390042873433 counting only the distinct ones).

The product of its (nonzero) digits is 59270400, while the sum is 63.

The spelling of 87572701025649 in words is "eighty-seven trillion, five hundred seventy-two billion, seven hundred one million, twenty-five thousand, six hundred forty-nine".