77871251878883 has 16 divisors (see below), whose sum is σ = 80275424841216. Its totient is φ = 75482957484000.

The previous prime is 77871251878813. The next prime is 77871251878919. The reversal of 77871251878883 is 38887815217877.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-77871251878883 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 77871251878798 and 77871251878807.

It is not an unprimeable number, because it can be changed into a prime (77871251878813) 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, 48965060 + ... + 50530382.

It is an arithmetic number, because the mean of its divisors is an integer number (5017214052576).

Almost surely, 2^{77871251878883} is an apocalyptic number.

77871251878883 is a deficient number, since it is larger than the sum of its proper divisors (2404172962333).

77871251878883 is a wasteful number, since it uses less digits than its factorization.

77871251878883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1570394.

The product of its digits is 2360279040, while the sum is 80.

The spelling of 77871251878883 in words is "seventy-seven trillion, eight hundred seventy-one billion, two hundred fifty-one million, eight hundred seventy-eight thousand, eight hundred eighty-three".