87979145695 has 8 divisors (see below), whose sum is σ = 120657114144. Its totient is φ = 60328557024.

The previous prime is 87979145663. The next prime is 87979145719. The reversal of 87979145695 is 59654197978.

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 87979145695 - 2⁵ = 87979145663 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1256844904 + ... + 1256844973.

It is an arithmetic number, because the mean of its divisors is an integer number (15082139268).

Almost surely, 2^87979145695 is an apocalyptic number.

87979145695 is a deficient number, since it is larger than the sum of its proper divisors (32677968449).

87979145695 is a wasteful number, since it uses less digits than its factorization.

87979145695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2513689889.

The product of its digits is 171460800, while the sum is 70.

The spelling of 87979145695 in words is "eighty-seven billion, nine hundred seventy-nine million, one hundred forty-five thousand, six hundred ninety-five".