74231157733 has 2 divisors, whose sum is σ = 74231157734. Its totient is φ = 74231157732.

The previous prime is 74231157719. The next prime is 74231157757. The reversal of 74231157733 is 33775113247.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63474771364 + 10756386369 = 251942^2 + 103713^2 .

It is a cyclic number.

It is not a de Polignac number, because 74231157733 - 2²⁵ = 74197603301 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74231157733.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74231157773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37115578866 + 37115578867.

It is an arithmetic number, because the mean of its divisors is an integer number (37115578867).

Almost surely, 2^74231157733 is an apocalyptic number.

It is an amenable number.

74231157733 is a deficient number, since it is larger than the sum of its proper divisors (1).

74231157733 is an equidigital number, since it uses as much as digits as its factorization.

74231157733 is an evil number, because the sum of its binary digits is even.

The product of its digits is 370440, while the sum is 43.

The spelling of 74231157733 in words is "seventy-four billion, two hundred thirty-one million, one hundred fifty-seven thousand, seven hundred thirty-three".