77440737774041 has 4 divisors (see below), whose sum is σ = 77464543721892. Its totient is φ = 77416931826192.

The previous prime is 77440737773981. The next prime is 77440737774067. The reversal of 77440737774041 is 14047773704477.

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 2 ways, for example, as 68735706490000 + 8705031284041 = 8290700^2 + 2950429^2 .

It is a cyclic number.

It is not a de Polignac number, because 77440737774041 - 2³⁴ = 77423557904857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77440737774541) 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, 11902969046 + ... + 11902975551.

It is an arithmetic number, because the mean of its divisors is an integer number (19366135930473).

Almost surely, 2^{77440737774041} is an apocalyptic number.

It is an amenable number.

77440737774041 is a deficient number, since it is larger than the sum of its proper divisors (23805947851).

77440737774041 is a wasteful number, since it uses less digits than its factorization.

77440737774041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23805947850.

The product of its (nonzero) digits is 90354432, while the sum is 62.

The spelling of 77440737774041 in words is "seventy-seven trillion, four hundred forty billion, seven hundred thirty-seven million, seven hundred seventy-four thousand, forty-one".