61413566425 has 12 divisors (see below), whose sum is σ = 77923819600. Its totient is φ = 47988274320.

The previous prime is 61413566353. The next prime is 61413566453. The reversal of 61413566425 is 52466531416.

61413566425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-61413566425 is a prime.

It is a super-2 number, since 2×61413566425² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

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, 28563375 + ... + 28565524.

Almost surely, 2^61413566425 is an apocalyptic number.

It is an amenable number.

61413566425 is a deficient number, since it is larger than the sum of its proper divisors (16510253175).

61413566425 is a wasteful number, since it uses less digits than its factorization.

61413566425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57128952 (or 57128947 counting only the distinct ones).

The product of its digits is 518400, while the sum is 43.

The spelling of 61413566425 in words is "sixty-one billion, four hundred thirteen million, five hundred sixty-six thousand, four hundred twenty-five".