74213801771 has 2 divisors, whose sum is σ = 74213801772. Its totient is φ = 74213801770.

The previous prime is 74213801743. The next prime is 74213801797. The reversal of 74213801771 is 17710831247.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74213801771 is a prime.

It is not a weakly prime, because it can be changed into another prime (74213801071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37106900885 + 37106900886.

It is an arithmetic number, because the mean of its divisors is an integer number (37106900886).

Almost surely, 2^74213801771 is an apocalyptic number.

74213801771 is a deficient number, since it is larger than the sum of its proper divisors (1).

74213801771 is an equidigital number, since it uses as much as digits as its factorization.

74213801771 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 65856, while the sum is 41.

The spelling of 74213801771 in words is "seventy-four billion, two hundred thirteen million, eight hundred one thousand, seven hundred seventy-one".