87940519157 has 8 divisors (see below), whose sum is σ = 88488443520. Its totient is φ = 87394095040.

The previous prime is 87940519133. The next prime is 87940519207. The reversal of 87940519157 is 75191504978.

It is a happy number.

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 87940519157 - 2²⁶ = 87873410293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87940519127) 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, 257348 + ... + 492045.

It is an arithmetic number, because the mean of its divisors is an integer number (11061055440).

Almost surely, 2^87940519157 is an apocalyptic number.

It is an amenable number.

87940519157 is a deficient number, since it is larger than the sum of its proper divisors (547924363).

87940519157 is a wasteful number, since it uses less digits than its factorization.

87940519157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750123.

The product of its (nonzero) digits is 3175200, while the sum is 56.

The spelling of 87940519157 in words is "eighty-seven billion, nine hundred forty million, five hundred nineteen thousand, one hundred fifty-seven".