61931253316 has 12 divisors (see below), whose sum is σ = 108384713920. Its totient is φ = 30964192200.

The previous prime is 61931253299. The next prime is 61931253341. The reversal of 61931253316 is 61335213916.

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, 258360 + ... + 436591.

Almost surely, 2^61931253316 is an apocalyptic number.

It is an amenable number.

61931253316 is a deficient number, since it is larger than the sum of its proper divisors (46453460604).

61931253316 is a wasteful number, since it uses less digits than its factorization.

61931253316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717234 (or 717232 counting only the distinct ones).

The product of its digits is 87480, while the sum is 40.

The spelling of 61931253316 in words is "sixty-one billion, nine hundred thirty-one million, two hundred fifty-three thousand, three hundred sixteen".