61764565477460 has 12 divisors (see below), whose sum is σ = 129705587502708. Its totient is φ = 24705826190976.

The previous prime is 61764565477453. The next prime is 61764565477471. The reversal of 61764565477460 is 6477456546716.

It can be written as a sum of positive squares in 2 ways, for example, as 33308550078736 + 28456015398724 = 5771356^2 + 5334418^2 .

It is a hoax number, since the sum of its digits (68) coincides with the sum of the digits of its distinct prime factors.

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, 1544114136917 + ... + 1544114136956.

It is an arithmetic number, because the mean of its divisors is an integer number (10808798958559).

Almost surely, 2^{61764565477460} is an apocalyptic number.

It is an amenable number.

61764565477460 is an abundant number, since it is smaller than the sum of its proper divisors (67941022025248).

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

61764565477460 is a wasteful number, since it uses less digits than its factorization.

61764565477460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3088228273882 (or 3088228273880 counting only the distinct ones).

The product of its (nonzero) digits is 711244800, while the sum is 68.

The spelling of 61764565477460 in words is "sixty-one trillion, seven hundred sixty-four billion, five hundred sixty-five million, four hundred seventy-seven thousand, four hundred sixty".