61328900610 has 24 divisors (see below), whose sum is σ = 159455141820. Its totient is φ = 16354373472.

The previous prime is 61328900609. The next prime is 61328900621. The reversal of 61328900610 is 1600982316.

61328900610 is a `hidden beast` number, since 6 + 1 + 32 + 8 + 9 + 0 + 0 + 610 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 58034255409 + 3294645201 = 240903^2 + 57399^2 .

It is a super-2 number, since 2×61328900610² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 340716025 + ... + 340716204.

Almost surely, 2^61328900610 is an apocalyptic number.

61328900610 is an abundant number, since it is smaller than the sum of its proper divisors (98126241210).

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

61328900610 is a wasteful number, since it uses less digits than its factorization.

61328900610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681432242 (or 681432239 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The spelling of 61328900610 in words is "sixty-one billion, three hundred twenty-eight million, nine hundred thousand, six hundred ten".