74376774091 has 4 divisors (see below), whose sum is σ = 74378907792. Its totient is φ = 74374640392.

The previous prime is 74376774089. The next prime is 74376774107. The reversal of 74376774091 is 19047767347.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 74376774091 - 2¹ = 74376774089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74376774011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1013680 + ... + 1084573.

It is an arithmetic number, because the mean of its divisors is an integer number (18594726948).

Almost surely, 2^74376774091 is an apocalyptic number.

74376774091 is a deficient number, since it is larger than the sum of its proper divisors (2133701).

74376774091 is a wasteful number, since it uses less digits than its factorization.

74376774091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2133700.

The product of its (nonzero) digits is 6223392, while the sum is 55.

The spelling of 74376774091 in words is "seventy-four billion, three hundred seventy-six million, seven hundred seventy-four thousand, ninety-one".