61404312085173 has 12 divisors (see below), whose sum is σ = 88832204199648. Its totient is φ = 40872937252200.

The previous prime is 61404312085153. The next prime is 61404312085213. The reversal of 61404312085173 is 37158021340416.

61404312085173 is a `hidden beast` number, since 6 + 1 + 4 + 0 + 4 + 3 + 120 + 8 + 517 + 3 = 666.

It is not a de Polignac number, because 61404312085173 - 2³⁴ = 61387132215989 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61404312085153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5272560903 + ... + 5272572548.

It is an arithmetic number, because the mean of its divisors is an integer number (7402683683304).

Almost surely, 2^{61404312085173} is an apocalyptic number.

It is an amenable number.

61404312085173 is a deficient number, since it is larger than the sum of its proper divisors (27427892114475).

61404312085173 is a wasteful number, since it uses less digits than its factorization.

61404312085173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10545134104 (or 10545134101 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 61404312085173 in words is "sixty-one trillion, four hundred four billion, three hundred twelve million, eighty-five thousand, one hundred seventy-three".