74307677831 has 2 divisors, whose sum is σ = 74307677832. Its totient is φ = 74307677830.

The previous prime is 74307677791. The next prime is 74307677849. The reversal of 74307677831 is 13877670347.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74307677831 is a prime.

It is a super-2 number, since 2×74307677831² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74307677861) 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 as a sum of consecutive naturals, namely, 37153838915 + 37153838916.

It is an arithmetic number, because the mean of its divisors is an integer number (37153838916).

Almost surely, 2^74307677831 is an apocalyptic number.

74307677831 is a deficient number, since it is larger than the sum of its proper divisors (1).

74307677831 is an equidigital number, since it uses as much as digits as its factorization.

74307677831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4148928, while the sum is 53.

The spelling of 74307677831 in words is "seventy-four billion, three hundred seven million, six hundred seventy-seven thousand, eight hundred thirty-one".