87960191537 has 8 divisors (see below), whose sum is σ = 91215791400. Its totient is φ = 84719424384.

The previous prime is 87960191513. The next prime is 87960191567. The reversal of 87960191537 is 73519106978.

It can be written as a sum of positive squares in 4 ways, for example, as 10217368561 + 77742822976 = 101081^2 + 278824^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87960191537 - 2³² = 83665224241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87960191567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3696098 + ... + 3719819.

It is an arithmetic number, because the mean of its divisors is an integer number (11401973925).

Almost surely, 2^87960191537 is an apocalyptic number.

It is an amenable number.

87960191537 is a deficient number, since it is larger than the sum of its proper divisors (3255599863).

87960191537 is a wasteful number, since it uses less digits than its factorization.

87960191537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7416355.

The product of its (nonzero) digits is 2857680, while the sum is 56.

The spelling of 87960191537 in words is "eighty-seven billion, nine hundred sixty million, one hundred ninety-one thousand, five hundred thirty-seven".