61034921875 has 16 divisors (see below), whose sum is σ = 76293554688. Its totient is φ = 48827875000.

The previous prime is 61034921851. The next prime is 61034921881. The reversal of 61034921875 is 57812943016.

It is not a de Polignac number, because 61034921875 - 2²⁷ = 60900704147 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 312499 + ... + 468748.

It is an arithmetic number, because the mean of its divisors is an integer number (4768347168).

It is a 2-persistent number, because it is pandigital, and so is 2⋅61034921875 = 122069843750, but 3⋅61034921875 = 183104765625 is not.

Almost surely, 2^61034921875 is an apocalyptic number.

61034921875 is the 156250-th heptagonal number.

61034921875 is a deficient number, since it is larger than the sum of its proper divisors (15258632813).

61034921875 is an frugal number, since it uses more digits than its factorization.

61034921875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781282 (or 781252 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 46.

The spelling of 61034921875 in words is "sixty-one billion, thirty-four million, nine hundred twenty-one thousand, eight hundred seventy-five".