74894552771 has 2 divisors, whose sum is σ = 74894552772. Its totient is φ = 74894552770.

The previous prime is 74894552767. The next prime is 74894552857. The reversal of 74894552771 is 17725549847.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 74894552771 - 2² = 74894552767 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74894552771.

It is not a weakly prime, because it can be changed into another prime (74894552371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37447276385 + 37447276386.

It is an arithmetic number, because the mean of its divisors is an integer number (37447276386).

Almost surely, 2^74894552771 is an apocalyptic number.

74894552771 is a deficient number, since it is larger than the sum of its proper divisors (1).

74894552771 is an equidigital number, since it uses as much as digits as its factorization.

74894552771 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19756800, while the sum is 59.

The spelling of 74894552771 in words is "seventy-four billion, eight hundred ninety-four million, five hundred fifty-two thousand, seven hundred seventy-one".