87234878056 has 16 divisors (see below), whose sum is σ = 163575311040. Its totient is φ = 43614795120.

The previous prime is 87234878053. The next prime is 87234878057. The reversal of 87234878056 is 65087843278.

It is not an unprimeable number, because it can be changed into a prime (87234878053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186576 + ... + 457471.

It is an arithmetic number, because the mean of its divisors is an integer number (10223456940).

Almost surely, 2^87234878056 is an apocalyptic number.

It is an amenable number.

87234878056 is a deficient number, since it is larger than the sum of its proper divisors (76340432984).

87234878056 is a wasteful number, since it uses less digits than its factorization.

87234878056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660984 (or 660980 counting only the distinct ones).

The product of its (nonzero) digits is 18063360, while the sum is 58.

The spelling of 87234878056 in words is "eighty-seven billion, two hundred thirty-four million, eight hundred seventy-eight thousand, fifty-six".