61239636325 has 12 divisors (see below), whose sum is σ = 86785313440. Its totient is φ = 41992893360.

The previous prime is 61239636277. The next prime is 61239636349. The reversal of 61239636325 is 52363693216.

It is not a de Polignac number, because 61239636325 - 2²¹ = 61237539173 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 174970215 + ... + 174970564.

Almost surely, 2^61239636325 is an apocalyptic number.

It is an amenable number.

61239636325 is a deficient number, since it is larger than the sum of its proper divisors (25545677115).

61239636325 is a wasteful number, since it uses less digits than its factorization.

61239636325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349940796 (or 349940791 counting only the distinct ones).

The product of its digits is 1049760, while the sum is 46.

The spelling of 61239636325 in words is "sixty-one billion, two hundred thirty-nine million, six hundred thirty-six thousand, three hundred twenty-five".