87693522378 has 64 divisors (see below), whose sum is σ = 223126963200. Its totient is φ = 22777532400.

The previous prime is 87693522361. The next prime is 87693522401. The reversal of 87693522378 is 87322539678.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1914228 + ... + 1959503.

It is an arithmetic number, because the mean of its divisors is an integer number (3486358800).

Almost surely, 2^87693522378 is an apocalyptic number.

87693522378 is an abundant number, since it is smaller than the sum of its proper divisors (135433440822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87693522378 is a wasteful number, since it uses less digits than its factorization.

87693522378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3873768 (or 3873754 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 60.

The spelling of 87693522378 in words is "eighty-seven billion, six hundred ninety-three million, five hundred twenty-two thousand, three hundred seventy-eight".