74206705231 has 2 divisors, whose sum is σ = 74206705232. Its totient is φ = 74206705230.

The previous prime is 74206705211. The next prime is 74206705369. The reversal of 74206705231 is 13250760247.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74206705231 is a prime.

It is a super-2 number, since 2×74206705231² (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 (74206705211) 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, 37103352615 + 37103352616.

It is an arithmetic number, because the mean of its divisors is an integer number (37103352616).

Almost surely, 2^74206705231 is an apocalyptic number.

74206705231 is a deficient number, since it is larger than the sum of its proper divisors (1).

74206705231 is an equidigital number, since it uses as much as digits as its factorization.

74206705231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 70560, while the sum is 37.

The spelling of 74206705231 in words is "seventy-four billion, two hundred six million, seven hundred five thousand, two hundred thirty-one".