74579347831 has 2 divisors, whose sum is σ = 74579347832. Its totient is φ = 74579347830.

The previous prime is 74579347729. The next prime is 74579347841. The reversal of 74579347831 is 13874397547.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74579347831 - 2⁹ = 74579347319 is a prime.

It is a super-2 number, since 2×74579347831² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74579347841) 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 as a sum of consecutive naturals, namely, 37289673915 + 37289673916.

It is an arithmetic number, because the mean of its divisors is an integer number (37289673916).

Almost surely, 2^74579347831 is an apocalyptic number.

74579347831 is a deficient number, since it is larger than the sum of its proper divisors (1).

74579347831 is an equidigital number, since it uses as much as digits as its factorization.

74579347831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17781120, while the sum is 58.

The spelling of 74579347831 in words is "seventy-four billion, five hundred seventy-nine million, three hundred forty-seven thousand, eight hundred thirty-one".