76677377407 has 4 divisors (see below), whose sum is σ = 77934383656. Its totient is φ = 75420371160.

The previous prime is 76677377363. The next prime is 76677377411. The reversal of 76677377407 is 70477377667.

It is a happy number.

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 76677377407 - 2⁷ = 76677377279 is a prime.

It is a super-3 number, since 3×76677377407³ (a number of 34 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (61), and also a Moran number because the ratio is a prime number: 1257006187 = 76677377407 / (7 + 6 + 6 + 7 + 7 + 3 + 7 + 7 + 4 + 0 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76677375407) 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, 628503033 + ... + 628503154.

It is an arithmetic number, because the mean of its divisors is an integer number (19483595914).

Almost surely, 2^76677377407 is an apocalyptic number.

76677377407 is a deficient number, since it is larger than the sum of its proper divisors (1257006249).

76677377407 is a wasteful number, since it uses less digits than its factorization.

76677377407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1257006248.

The product of its (nonzero) digits is 50824368, while the sum is 61.

The spelling of 76677377407 in words is "seventy-six billion, six hundred seventy-seven million, three hundred seventy-seven thousand, four hundred seven".