74899534511 has 2 divisors, whose sum is σ = 74899534512. Its totient is φ = 74899534510.

The previous prime is 74899534393. The next prime is 74899534519. The reversal of 74899534511 is 11543599847.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74899534511 - 2²² = 74895340207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74899534519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37449767255 + 37449767256.

It is an arithmetic number, because the mean of its divisors is an integer number (37449767256).

Almost surely, 2^74899534511 is an apocalyptic number.

74899534511 is a deficient number, since it is larger than the sum of its proper divisors (1).

74899534511 is an equidigital number, since it uses as much as digits as its factorization.

74899534511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5443200, while the sum is 56.

The spelling of 74899534511 in words is "seventy-four billion, eight hundred ninety-nine million, five hundred thirty-four thousand, five hundred eleven".