74455785831 has 16 divisors (see below), whose sum is σ = 113518458368. Its totient is φ = 42522904800.

The previous prime is 74455785749. The next prime is 74455785841. The reversal of 74455785831 is 13858755447.

It is not a de Polignac number, because 74455785831 - 2²³ = 74447397223 is a prime.

It is a super-2 number, since 2×74455785831² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74455785841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 929740 + ... + 1006641.

It is an arithmetic number, because the mean of its divisors is an integer number (7094903648).

Almost surely, 2^74455785831 is an apocalyptic number.

74455785831 is a deficient number, since it is larger than the sum of its proper divisors (39062672537).

74455785831 is a wasteful number, since it uses less digits than its factorization.

74455785831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1938222.

The product of its digits is 18816000, while the sum is 57.

The spelling of 74455785831 in words is "seventy-four billion, four hundred fifty-five million, seven hundred eighty-five thousand, eight hundred thirty-one".