49195166478 has 16 divisors (see below), whose sum is σ = 101049531600. Its totient is φ = 15955189056.

The previous prime is 49195166437. The next prime is 49195166497. The reversal of 49195166478 is 87466159194.

It is a congruent number.

It is an unprimeable number.

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, 110799703 + ... + 110800146.

It is an arithmetic number, because the mean of its divisors is an integer number (6315595725).

Almost surely, 2^49195166478 is an apocalyptic number.

49195166478 is an abundant number, since it is smaller than the sum of its proper divisors (51854365122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49195166478 is a wasteful number, since it uses less digits than its factorization.

49195166478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221599891.

The product of its digits is 13063680, while the sum is 60.

The spelling of 49195166478 in words is "forty-nine billion, one hundred ninety-five million, one hundred sixty-six thousand, four hundred seventy-eight".