87586774979 has 8 divisors (see below), whose sum is σ = 96894973440. Its totient is φ = 78502870600.

The previous prime is 87586774969. The next prime is 87586774987. The reversal of 87586774979 is 97947768578.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-87586774979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87586774969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56072699 + ... + 56074260.

It is an arithmetic number, because the mean of its divisors is an integer number (12111871680).

Almost surely, 2^87586774979 is an apocalyptic number.

87586774979 is a deficient number, since it is larger than the sum of its proper divisors (9308198461).

87586774979 is a wasteful number, since it uses less digits than its factorization.

87586774979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112147041.

The product of its digits is 1493614080, while the sum is 77.

The spelling of 87586774979 in words is "eighty-seven billion, five hundred eighty-six million, seven hundred seventy-four thousand, nine hundred seventy-nine".