87958724565 has 16 divisors (see below), whose sum is σ = 140742050688. Its totient is φ = 46908622656.

The previous prime is 87958724563. The next prime is 87958724569. The reversal of 87958724565 is 56542785978.

It is not a de Polignac number, because 87958724565 - 2¹ = 87958724563 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87958724496 and 87958724505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87958724563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116584 + ... + 435326.

It is an arithmetic number, because the mean of its divisors is an integer number (8796378168).

Almost surely, 2^87958724565 is an apocalyptic number.

It is an amenable number.

87958724565 is a deficient number, since it is larger than the sum of its proper divisors (52783326123).

87958724565 is a wasteful number, since it uses less digits than its factorization.

87958724565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337148.

The product of its digits is 169344000, while the sum is 66.

The spelling of 87958724565 in words is "eighty-seven billion, nine hundred fifty-eight million, seven hundred twenty-four thousand, five hundred sixty-five".