74505623677 has 2 divisors, whose sum is σ = 74505623678. Its totient is φ = 74505623676.

The previous prime is 74505623669. The next prime is 74505623701. The reversal of 74505623677 is 77632650547.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72807689241 + 1697934436 = 269829^2 + 41206^2 .

It is a cyclic number.

It is not a de Polignac number, because 74505623677 - 2³ = 74505623669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74505623977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37252811838 + 37252811839.

It is an arithmetic number, because the mean of its divisors is an integer number (37252811839).

Almost surely, 2^74505623677 is an apocalyptic number.

It is an amenable number.

74505623677 is a deficient number, since it is larger than the sum of its proper divisors (1).

74505623677 is an equidigital number, since it uses as much as digits as its factorization.

74505623677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7408800, while the sum is 52.

The spelling of 74505623677 in words is "seventy-four billion, five hundred five million, six hundred twenty-three thousand, six hundred seventy-seven".