61919992 has 16 divisors (see below), whose sum is σ = 117500040. Its totient is φ = 30586656.

The previous prime is 61919947. The next prime is 61920007. The reversal of 61919992 is 29991916.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45963 + ... + 47290.

Almost surely, 2^61919992 is an apocalyptic number.

It is an amenable number.

61919992 is a deficient number, since it is larger than the sum of its proper divisors (55580048).

61919992 is a wasteful number, since it uses less digits than its factorization.

61919992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93342 (or 93338 counting only the distinct ones).

The product of its digits is 78732, while the sum is 46.

The square root of 61919992 is about 7868.9257208338. The cubic root of 61919992 is about 395.6188387624.

The spelling of 61919992 in words is "sixty-one million, nine hundred nineteen thousand, nine hundred ninety-two".