74598251161 has 12 divisors (see below), whose sum is σ = 86782330368. Its totient is φ = 63937841352.

The previous prime is 74598251137. The next prime is 74598251177. The reversal of 74598251161 is 16115289547.

It is not a de Polignac number, because 74598251161 - 2¹¹ = 74598249113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74598251131) 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, 1279140 + ... + 1336186.

It is an arithmetic number, because the mean of its divisors is an integer number (7231860864).

Almost surely, 2^74598251161 is an apocalyptic number.

It is an amenable number.

74598251161 is a deficient number, since it is larger than the sum of its proper divisors (12184079207).

74598251161 is a wasteful number, since it uses less digits than its factorization.

74598251161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83748 (or 83741 counting only the distinct ones).

The product of its digits is 604800, while the sum is 49.

The spelling of 74598251161 in words is "seventy-four billion, five hundred ninety-eight million, two hundred fifty-one thousand, one hundred sixty-one".