61474425994 has 8 divisors (see below), whose sum is σ = 92213661060. Its totient is φ = 30736538976.

The previous prime is 61474425973. The next prime is 61474426007. The reversal of 61474425994 is 49952447416.

It can be written as a sum of positive squares in 2 ways, for example, as 52297743969 + 9176682025 = 228687^2 + 95795^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 214029 + ... + 410800.

Almost surely, 2^61474425994 is an apocalyptic number.

61474425994 is a deficient number, since it is larger than the sum of its proper divisors (30739235066).

61474425994 is a wasteful number, since it uses less digits than its factorization.

61474425994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674024.

The product of its digits is 8709120, while the sum is 55.

The spelling of 61474425994 in words is "sixty-one billion, four hundred seventy-four million, four hundred twenty-five thousand, nine hundred ninety-four".