61359174572 has 24 divisors (see below), whose sum is σ = 111306209280. Its totient is φ = 29565683280.

The previous prime is 61359174559. The next prime is 61359174581. The reversal of 61359174572 is 27547195316.

61359174572 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 61359174572.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1005578 + ... + 1064849.

It is an arithmetic number, because the mean of its divisors is an integer number (4637758720).

Almost surely, 2^61359174572 is an apocalyptic number.

61359174572 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

61359174572 is a deficient number, since it is larger than the sum of its proper divisors (49947034708).

61359174572 is a wasteful number, since it uses less digits than its factorization.

61359174572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2070701 (or 2070699 counting only the distinct ones).

The product of its digits is 1587600, while the sum is 50.

The spelling of 61359174572 in words is "sixty-one billion, three hundred fifty-nine million, one hundred seventy-four thousand, five hundred seventy-two".