61928313316 has 9 divisors (see below), whose sum is σ = 108375419299. Its totient is φ = 30963907804.

The previous prime is 61928313277. The next prime is 61928313341. The reversal of 61928313316 is 61331382916.

The square root of 61928313316 is 248854.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 435495 + ... + 559921.

Almost surely, 2^61928313316 is an apocalyptic number.

61928313316 is the 248854-th square number.

It is an amenable number.

61928313316 is a deficient number, since it is larger than the sum of its proper divisors (46447105983).

61928313316 is an frugal number, since it uses more digits than its factorization.

61928313316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248858 (or 124429 counting only the distinct ones).

The product of its digits is 139968, while the sum is 43.

The spelling of 61928313316 in words is "sixty-one billion, nine hundred twenty-eight million, three hundred thirteen thousand, three hundred sixteen".