61714378992 has 40 divisors (see below), whose sum is σ = 182204358016. Its totient is φ = 17632679616.

The previous prime is 61714378963. The next prime is 61714379039. The reversal of 61714378992 is 29987341716.

It is a happy number.

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, 91836538 + ... + 91837209.

Almost surely, 2^61714378992 is an apocalyptic number.

It is an amenable number.

61714378992 is an abundant number, since it is smaller than the sum of its proper divisors (120489979024).

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

61714378992 is a wasteful number, since it uses less digits than its factorization.

61714378992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183673765 (or 183673759 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 57.

The spelling of 61714378992 in words is "sixty-one billion, seven hundred fourteen million, three hundred seventy-eight thousand, nine hundred ninety-two".