61273090524 has 12 divisors (see below), whose sum is σ = 142970544584. Its totient is φ = 20424363504.

The previous prime is 61273090469. The next prime is 61273090537. The reversal of 61273090524 is 42509037216.

It is a tau number, because it is divible by the number of its divisors (12).

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, 2553045427 + ... + 2553045450.

Almost surely, 2^61273090524 is an apocalyptic number.

It is an amenable number.

61273090524 is an abundant number, since it is smaller than the sum of its proper divisors (81697454060).

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

61273090524 is a wasteful number, since it uses less digits than its factorization.

61273090524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5106090884 (or 5106090882 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 39.

The spelling of 61273090524 in words is "sixty-one billion, two hundred seventy-three million, ninety thousand, five hundred twenty-four".