49173608778 has 32 divisors (see below), whose sum is σ = 116272575360. Its totient is φ = 13565133120.

The previous prime is 49173608777. The next prime is 49173608797. The reversal of 49173608778 is 87780637194.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (49173608773) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20184993 + ... + 20187428.

It is an arithmetic number, because the mean of its divisors is an integer number (3633517980).

Almost surely, 2^49173608778 is an apocalyptic number.

49173608778 is an abundant number, since it is smaller than the sum of its proper divisors (67098966582).

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

49173608778 is a wasteful number, since it uses less digits than its factorization.

49173608778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40372462.

The product of its (nonzero) digits is 14224896, while the sum is 60.

The spelling of 49173608778 in words is "forty-nine billion, one hundred seventy-three million, six hundred eight thousand, seven hundred seventy-eight".