61461406325 has 24 divisors (see below), whose sum is σ = 83170882080. Its totient is φ = 44682881600.

The previous prime is 61461406301. The next prime is 61461406339. The reversal of 61461406325 is 52360416416.

It is not a de Polignac number, because 61461406325 - 2¹⁸ = 61461144181 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 740786 + ... + 819564.

It is an arithmetic number, because the mean of its divisors is an integer number (3465453420).

Almost surely, 2^61461406325 is an apocalyptic number.

It is an amenable number.

61461406325 is a deficient number, since it is larger than the sum of its proper divisors (21709475755).

61461406325 is a wasteful number, since it uses less digits than its factorization.

61461406325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81637 (or 81632 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 38.

The spelling of 61461406325 in words is "sixty-one billion, four hundred sixty-one million, four hundred six thousand, three hundred twenty-five".