74732197431 has 32 divisors (see below), whose sum is σ = 106414663680. Its totient is φ = 46512597600.

The previous prime is 74732197411. The next prime is 74732197513. The reversal of 74732197431 is 13479123747.

It is not a de Polignac number, because 74732197431 - 2¹¹ = 74732195383 is a prime.

It is a super-2 number, since 2×74732197431² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74732197411) 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 31 ways as a sum of consecutive naturals, for example, 14934976 + ... + 14939978.

It is an arithmetic number, because the mean of its divisors is an integer number (3325458240).

Almost surely, 2^74732197431 is an apocalyptic number.

74732197431 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

74732197431 is a deficient number, since it is larger than the sum of its proper divisors (31682466249).

74732197431 is a wasteful number, since it uses less digits than its factorization.

74732197431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8787.

The product of its digits is 889056, while the sum is 48.

The spelling of 74732197431 in words is "seventy-four billion, seven hundred thirty-two million, one hundred ninety-seven thousand, four hundred thirty-one".