83777980451 has 16 divisors (see below), whose sum is σ = 91676988000. Its totient is φ = 75926323200.

The previous prime is 83777980427. The next prime is 83777980487. The reversal of 83777980451 is 15408977738.

It is a cyclic number.

It is not a de Polignac number, because 83777980451 - 2³⁴ = 66598111267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83777985451) 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, 10903331 + ... + 10911011.

It is an arithmetic number, because the mean of its divisors is an integer number (5729811750).

Almost surely, 2^83777980451 is an apocalyptic number.

83777980451 is a deficient number, since it is larger than the sum of its proper divisors (7899007549).

83777980451 is a wasteful number, since it uses less digits than its factorization.

83777980451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10630.

The product of its (nonzero) digits is 11854080, while the sum is 59.

The spelling of 83777980451 in words is "eighty-three billion, seven hundred seventy-seven million, nine hundred eighty thousand, four hundred fifty-one".