61459968788 has 48 divisors (see below), whose sum is σ = 113096390400. Its totient is φ = 29167716864.

The previous prime is 61459968751. The next prime is 61459968793. The reversal of 61459968788 is 88786995416.

61459968788 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×61459968788³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

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, 21287081 + ... + 21289967.

It is an arithmetic number, because the mean of its divisors is an integer number (2356174800).

Almost surely, 2^61459968788 is an apocalyptic number.

It is an amenable number.

61459968788 is a deficient number, since it is larger than the sum of its proper divisors (51636421612).

61459968788 is a wasteful number, since it uses less digits than its factorization.

61459968788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4616 (or 4614 counting only the distinct ones).

The product of its digits is 209018880, while the sum is 71.

The spelling of 61459968788 in words is "sixty-one billion, four hundred fifty-nine million, nine hundred sixty-eight thousand, seven hundred eighty-eight".