61325177793 has 16 divisors (see below), whose sum is σ = 89457336576. Its totient is φ = 37059658640.

The previous prime is 61325177791. The next prime is 61325177873. The reversal of 61325177793 is 39777152316.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 61325177793 - 2¹ = 61325177791 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61325177791) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2666271 + ... + 2689172.

It is an arithmetic number, because the mean of its divisors is an integer number (5591083536).

Almost surely, 2^61325177793 is an apocalyptic number.

It is an amenable number.

61325177793 is a deficient number, since it is larger than the sum of its proper divisors (28132158783).

61325177793 is a wasteful number, since it uses less digits than its factorization.

61325177793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5355804.

The product of its digits is 1666980, while the sum is 51.

The spelling of 61325177793 in words is "sixty-one billion, three hundred twenty-five million, one hundred seventy-seven thousand, seven hundred ninety-three".