49955694128890 has 16 divisors (see below), whose sum is σ = 98094817562400. Its totient is φ = 18165706955920.

The previous prime is 49955694128887. The next prime is 49955694128917. The reversal of 49955694128890 is 9882149655994.

It is a self number, because there is not a number n which added to its sum of digits gives 49955694128890.

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, 227071336840 + ... + 227071337059.

It is an arithmetic number, because the mean of its divisors is an integer number (6130926097650).

Almost surely, 2^{49955694128890} is an apocalyptic number.

49955694128890 is a deficient number, since it is larger than the sum of its proper divisors (48139123433510).

49955694128890 is a wasteful number, since it uses less digits than its factorization.

49955694128890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454142673917.

The product of its (nonzero) digits is 2015539200, while the sum is 79.

The spelling of 49955694128890 in words is "forty-nine trillion, nine hundred fifty-five billion, six hundred ninety-four million, one hundred twenty-eight thousand, eight hundred ninety".