83887278838 has 64 divisors (see below), whose sum is σ = 150118339392. Its totient is φ = 34727546880.

The previous prime is 83887278763. The next prime is 83887278847.

83887278838 is nontrivially palindromic in base 10.

It is a congruent number.

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, 1418020 + ... + 1475992.

It is an arithmetic number, because the mean of its divisors is an integer number (2345599053).

Almost surely, 2^83887278838 is an apocalyptic number.

83887278838 is a deficient number, since it is larger than the sum of its proper divisors (66231060554).

83887278838 is a wasteful number, since it uses less digits than its factorization.

83887278838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58129.

The product of its digits is 231211008, while the sum is 70.

The spelling of 83887278838 in words is "eighty-three billion, eight hundred eighty-seven million, two hundred seventy-eight thousand, eight hundred thirty-eight".