51777199473 has 8 divisors (see below), whose sum is σ = 69345846528. Its totient is φ = 34363342704.

The previous prime is 51777199457. The next prime is 51777199549. The reversal of 51777199473 is 37499177715.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51777199473 - 2⁴ = 51777199457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51777199973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38696790 + ... + 38698127.

It is an arithmetic number, because the mean of its divisors is an integer number (8668230816).

Almost surely, 2^51777199473 is an apocalyptic number.

It is an amenable number.

51777199473 is a deficient number, since it is larger than the sum of its proper divisors (17568647055).

51777199473 is a wasteful number, since it uses less digits than its factorization.

51777199473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77395143.

The product of its digits is 11668860, while the sum is 60.

The spelling of 51777199473 in words is "fifty-one billion, seven hundred seventy-seven million, one hundred ninety-nine thousand, four hundred seventy-three".