77026922091 has 12 divisors (see below), whose sum is σ = 127155554032. Its totient is φ = 44015384016.

The previous prime is 77026922083. The next prime is 77026922107. The reversal of 77026922091 is 19022962077.

It is not a de Polignac number, because 77026922091 - 2³ = 77026922083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77026922041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 611324716 + ... + 611324841.

Almost surely, 2^77026922091 is an apocalyptic number.

77026922091 is a deficient number, since it is larger than the sum of its proper divisors (50128631941).

77026922091 is a wasteful number, since it uses less digits than its factorization.

77026922091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222649570 (or 1222649567 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The spelling of 77026922091 in words is "seventy-seven billion, twenty-six million, nine hundred twenty-two thousand, ninety-one".