79557549741 has 6 divisors (see below), whose sum is σ = 114916460750. Its totient is φ = 53038366488.

The previous prime is 79557549719. The next prime is 79557549779. The reversal of 79557549741 is 14794575597.

79557549741 is a `hidden beast` number, since 7 + 9 + 557 + 5 + 4 + 9 + 74 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 43516046025 + 36041503716 = 208605^2 + 189846^2 .

It is not a de Polignac number, because 79557549741 - 2²⁷ = 79423332013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79557549791) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4419863866 + ... + 4419863883.

Almost surely, 2^79557549741 is an apocalyptic number.

It is an amenable number.

79557549741 is a deficient number, since it is larger than the sum of its proper divisors (35358911009).

79557549741 is a wasteful number, since it uses less digits than its factorization.

79557549741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8839727755 (or 8839727752 counting only the distinct ones).

The product of its digits is 55566000, while the sum is 63.

The spelling of 79557549741 in words is "seventy-nine billion, five hundred fifty-seven million, five hundred forty-nine thousand, seven hundred forty-one".