77113420407 has 18 divisors (see below), whose sum is σ = 116234945736. Its totient is φ = 49171227600.

The previous prime is 77113420403. The next prime is 77113420477. The reversal of 77113420407 is 70402431177.

It is not a de Polignac number, because 77113420407 - 2² = 77113420403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77113420403) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3985657 + ... + 4004957.

Almost surely, 2^77113420407 is an apocalyptic number.

77113420407 is a deficient number, since it is larger than the sum of its proper divisors (39121525329).

77113420407 is an frugal number, since it uses more digits than its factorization.

77113420407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38631 (or 19327 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 36.

The spelling of 77113420407 in words is "seventy-seven billion, one hundred thirteen million, four hundred twenty thousand, four hundred seven".