74569898939 has 2 divisors, whose sum is σ = 74569898940. Its totient is φ = 74569898938.

The previous prime is 74569898849. The next prime is 74569898951. The reversal of 74569898939 is 93989896547.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74569898939 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74569898939.

It is not a weakly prime, because it can be changed into another prime (74569898959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37284949469 + 37284949470.

It is an arithmetic number, because the mean of its divisors is an integer number (37284949470).

Almost surely, 2^74569898939 is an apocalyptic number.

74569898939 is a deficient number, since it is larger than the sum of its proper divisors (1).

74569898939 is an equidigital number, since it uses as much as digits as its factorization.

74569898939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1058158080, while the sum is 77.

The spelling of 74569898939 in words is "seventy-four billion, five hundred sixty-nine million, eight hundred ninety-eight thousand, nine hundred thirty-nine".