74246722731 has 12 divisors (see below), whose sum is σ = 112889754120. Its totient is φ = 46892666880.

The previous prime is 74246722699. The next prime is 74246722783. The reversal of 74246722731 is 13722764247.

74246722731 is a `hidden beast` number, since 74 + 246 + 72 + 273 + 1 = 666.

It is not a de Polignac number, because 74246722731 - 2⁵ = 74246722699 is a prime.

It is a super-2 number, since 2×74246722731² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (74246722331) 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 11 ways as a sum of consecutive naturals, for example, 217095510 + ... + 217095851.

It is an arithmetic number, because the mean of its divisors is an integer number (9407479510).

Almost surely, 2^74246722731 is an apocalyptic number.

74246722731 is a deficient number, since it is larger than the sum of its proper divisors (38643031389).

74246722731 is a wasteful number, since it uses less digits than its factorization.

74246722731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434191386 (or 434191383 counting only the distinct ones).

The product of its digits is 790272, while the sum is 45.

The spelling of 74246722731 in words is "seventy-four billion, two hundred forty-six million, seven hundred twenty-two thousand, seven hundred thirty-one".