77429000391 has 16 divisors (see below), whose sum is σ = 104583068160. Its totient is φ = 50947603200.

The previous prime is 77429000381. The next prime is 77429000413. The reversal of 77429000391 is 19300092477.

It is not a de Polignac number, because 77429000391 - 2²³ = 77420611783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77429000321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 618391 + ... + 732983.

It is an arithmetic number, because the mean of its divisors is an integer number (6536441760).

Almost surely, 2^77429000391 is an apocalyptic number.

77429000391 is the 175988-th centered pentagonal number.

77429000391 is a deficient number, since it is larger than the sum of its proper divisors (27154067769).

77429000391 is a wasteful number, since it uses less digits than its factorization.

77429000391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117526.

The product of its (nonzero) digits is 95256, while the sum is 42.

The spelling of 77429000391 in words is "seventy-seven billion, four hundred twenty-nine million, three hundred ninety-one", and thus it is an aban number.