61879438392 has 32 divisors (see below), whose sum is σ = 154713920400. Its totient is φ = 20624436224.

The previous prime is 61879438367. The next prime is 61879438417. The reversal of 61879438392 is 29383497816.

It is an interprime number because it is at equal distance from previous prime (61879438367) and next prime (61879438417).

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, 130258 + ... + 375134.

Almost surely, 2^61879438392 is an apocalyptic number.

It is an amenable number.

61879438392 is an abundant number, since it is smaller than the sum of its proper divisors (92834482008).

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

61879438392 is a wasteful number, since it uses less digits than its factorization.

61879438392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255415 (or 255411 counting only the distinct ones).

The product of its digits is 15676416, while the sum is 60.

The spelling of 61879438392 in words is "sixty-one billion, eight hundred seventy-nine million, four hundred thirty-eight thousand, three hundred ninety-two".