77671107044074 has 4 divisors (see below), whose sum is σ = 116506660566114. Its totient is φ = 38835553522036.

The previous prime is 77671107044059. The next prime is 77671107044081. The reversal of 77671107044074 is 47044070117677.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 71089096159225 + 6582010884849 = 8431435^2 + 2565543^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19417776761017 + ... + 19417776761020.

Almost surely, 2^{77671107044074} is an apocalyptic number.

77671107044074 is a deficient number, since it is larger than the sum of its proper divisors (38835553522040).

77671107044074 is a wasteful number, since it uses less digits than its factorization.

77671107044074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38835553522039.

The product of its (nonzero) digits is 6453888, while the sum is 55.

The spelling of 77671107044074 in words is "seventy-seven trillion, six hundred seventy-one billion, one hundred seven million, forty-four thousand, seventy-four".