61492751793 has 48 divisors (see below), whose sum is σ = 100639506240. Its totient is φ = 35839440000.

The previous prime is 61492751791. The next prime is 61492751813. The reversal of 61492751793 is 39715729416.

61492751793 is a `hidden beast` number, since 6 + 14 + 9 + 27 + 517 + 93 = 666.

It is not a de Polignac number, because 61492751793 - 2¹ = 61492751791 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61492751791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 677955 + ... + 763287.

It is an arithmetic number, because the mean of its divisors is an integer number (2096656380).

Almost surely, 2^61492751793 is an apocalyptic number.

It is an amenable number.

61492751793 is a deficient number, since it is larger than the sum of its proper divisors (39146754447).

61492751793 is a wasteful number, since it uses less digits than its factorization.

61492751793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85630 (or 85627 counting only the distinct ones).

The product of its digits is 2857680, while the sum is 54.

The spelling of 61492751793 in words is "sixty-one billion, four hundred ninety-two million, seven hundred fifty-one thousand, seven hundred ninety-three".