61860459669072 has 20 divisors (see below), whose sum is σ = 159806187478560. Its totient is φ = 20620153223008.

The previous prime is 61860459669053. The next prime is 61860459669251. The reversal of 61860459669072 is 27096695406816.

It is a junction number, because it is equal to n+sod(n) for n = 61860459668988 and 61860459669006.

It is a congruent number.

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, 644379788172 + ... + 644379788267.

It is an arithmetic number, because the mean of its divisors is an integer number (7990309373928).

Almost surely, 2^{61860459669072} is an apocalyptic number.

It is an amenable number.

61860459669072 is an abundant number, since it is smaller than the sum of its proper divisors (97945727809488).

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

61860459669072 is a wasteful number, since it uses less digits than its factorization.

61860459669072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1288759576450 (or 1288759576444 counting only the distinct ones).

The product of its (nonzero) digits is 235146240, while the sum is 69.

The spelling of 61860459669072 in words is "sixty-one trillion, eight hundred sixty billion, four hundred fifty-nine million, six hundred sixty-nine thousand, seventy-two".