61172726746604 has 12 divisors (see below), whose sum is σ = 116784296516328. Its totient is φ = 27805784884800.

The previous prime is 61172726746517. The next prime is 61172726746619. The reversal of 61172726746604 is 40664762727116.

It is a super-2 number, since 2×61172726746604² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 695144622077 + ... + 695144622164.

It is an arithmetic number, because the mean of its divisors is an integer number (9732024709694).

Almost surely, 2^{61172726746604} is an apocalyptic number.

It is an amenable number.

61172726746604 is a deficient number, since it is larger than the sum of its proper divisors (55611569769724).

61172726746604 is a wasteful number, since it uses less digits than its factorization.

61172726746604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1390289244256 (or 1390289244254 counting only the distinct ones).

The product of its (nonzero) digits is 28449792, while the sum is 59.

The spelling of 61172726746604 in words is "sixty-one trillion, one hundred seventy-two billion, seven hundred twenty-six million, seven hundred forty-six thousand, six hundred four".