77850873419 has 6 divisors (see below), whose sum is σ = 84929235084. Its totient is φ = 70772680020.

The previous prime is 77850873413. The next prime is 77850873421. The reversal of 77850873419 is 91437805877.

It is not a de Polignac number, because 77850873419 - 2²⁴ = 77834096203 is a prime.

It is a super-2 number, since 2×77850873419² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77850873413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 883334 + ... + 967460.

It is an arithmetic number, because the mean of its divisors is an integer number (14154872514).

Almost surely, 2^77850873419 is an apocalyptic number.

77850873419 is a deficient number, since it is larger than the sum of its proper divisors (7078361665).

77850873419 is an frugal number, since it uses more digits than its factorization.

77850873419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168265 (or 84138 counting only the distinct ones).

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

The spelling of 77850873419 in words is "seventy-seven billion, eight hundred fifty million, eight hundred seventy-three thousand, four hundred nineteen".