49772773173 has 4 divisors (see below), whose sum is σ = 66363697568. Its totient is φ = 33181848780.

The previous prime is 49772773133. The next prime is 49772773177. The reversal of 49772773173 is 37137727794.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-49772773173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49772773177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8295462193 + ... + 8295462198.

It is an arithmetic number, because the mean of its divisors is an integer number (16590924392).

Almost surely, 2^49772773173 is an apocalyptic number.

It is an amenable number.

49772773173 is a deficient number, since it is larger than the sum of its proper divisors (16590924395).

49772773173 is a wasteful number, since it uses less digits than its factorization.

49772773173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16590924394.

The product of its digits is 10890936, while the sum is 57.

The spelling of 49772773173 in words is "forty-nine billion, seven hundred seventy-two million, seven hundred seventy-three thousand, one hundred seventy-three".