61310708512 has 24 divisors (see below), whose sum is σ = 123967769436. Its totient is φ = 29826830592.

The previous prime is 61310708489. The next prime is 61310708531. The reversal of 61310708512 is 21580701316.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 61125639696 + 185068816 = 247236^2 + 13604^2 .

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, 25890163 + ... + 25892530.

Almost surely, 2^61310708512 is an apocalyptic number.

It is an amenable number.

61310708512 is an abundant number, since it is smaller than the sum of its proper divisors (62657060924).

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

61310708512 is a wasteful number, since it uses less digits than its factorization.

61310708512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51782740 (or 51782732 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 34.

The spelling of 61310708512 in words is "sixty-one billion, three hundred ten million, seven hundred eight thousand, five hundred twelve".