61405014325 has 12 divisors (see below), whose sum is σ = 76368169540. Its totient is φ = 48978236160.

The previous prime is 61405014301. The next prime is 61405014331. The reversal of 61405014325 is 52341050416.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 8118370404 + 53286643921 = 90102^2 + 230839^2 .

It is a de Polignac number, because none of the positive numbers 2^k-61405014325 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, 3635790 + ... + 3652639.

Almost surely, 2^61405014325 is an apocalyptic number.

It is an amenable number.

61405014325 is a deficient number, since it is larger than the sum of its proper divisors (14963155215).

61405014325 is a wasteful number, since it uses less digits than its factorization.

61405014325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7288776 (or 7288771 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The spelling of 61405014325 in words is "sixty-one billion, four hundred five million, fourteen thousand, three hundred twenty-five".