49778490955 has 8 divisors (see below), whose sum is σ = 59982050304. Its totient is φ = 39657552000.

The previous prime is 49778490911. The next prime is 49778491019. The reversal of 49778490955 is 55909487794.

It is a happy number.

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

It is not a de Polignac number, because 49778490955 - 2²⁷ = 49644273227 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20653771 + ... + 20656180.

It is an arithmetic number, because the mean of its divisors is an integer number (7497756288).

Almost surely, 2^49778490955 is an apocalyptic number.

49778490955 is a deficient number, since it is larger than the sum of its proper divisors (10203559349).

49778490955 is a wasteful number, since it uses less digits than its factorization.

49778490955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41310197.

The product of its (nonzero) digits is 114307200, while the sum is 67.

The spelling of 49778490955 in words is "forty-nine billion, seven hundred seventy-eight million, four hundred ninety thousand, nine hundred fifty-five".