61030980730 has 32 divisors (see below), whose sum is σ = 116506591056. Its totient is φ = 22939090944.

The previous prime is 61030980727. The next prime is 61030980749. The reversal of 61030980730 is 3708903016.

It can be written as a sum of positive squares in 8 ways, for example, as 34318674009 + 26712306721 = 185253^2 + 163439^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 61030980730.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186039 + ... + 395818.

Almost surely, 2^61030980730 is an apocalyptic number.

61030980730 is a deficient number, since it is larger than the sum of its proper divisors (55475610326).

61030980730 is a wasteful number, since it uses less digits than its factorization.

61030980730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582498.

The product of its (nonzero) digits is 27216, while the sum is 37.

The spelling of 61030980730 in words is "sixty-one billion, thirty million, nine hundred eighty thousand, seven hundred thirty".