49111155778 has 8 divisors (see below), whose sum is σ = 74246787072. Its totient is φ = 24362226756.

The previous prime is 49111155773. The next prime is 49111155791. The reversal of 49111155778 is 87755111194.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (49111155773) 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, 96675250 + ... + 96675757.

It is an arithmetic number, because the mean of its divisors is an integer number (9280848384).

Almost surely, 2^49111155778 is an apocalyptic number.

49111155778 is a deficient number, since it is larger than the sum of its proper divisors (25135631294).

49111155778 is a wasteful number, since it uses less digits than its factorization.

49111155778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193351136.

The product of its digits is 352800, while the sum is 49.

The spelling of 49111155778 in words is "forty-nine billion, one hundred eleven million, one hundred fifty-five thousand, seven hundred seventy-eight".