49780943111 has 4 divisors (see below), whose sum is σ = 49787438592. Its totient is φ = 49774447632.

The previous prime is 49780943101. The next prime is 49780943131. The reversal of 49780943111 is 11134908794.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11134908794 = 2 ⋅5567454397.

It is a cyclic number.

It is not a de Polignac number, because 49780943111 - 2²² = 49776748807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49780943101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3236231 + ... + 3251576.

It is an arithmetic number, because the mean of its divisors is an integer number (12446859648).

Almost surely, 2^49780943111 is an apocalyptic number.

49780943111 is a deficient number, since it is larger than the sum of its proper divisors (6495481).

49780943111 is an equidigital number, since it uses as much as digits as its factorization.

49780943111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6495480.

The product of its (nonzero) digits is 217728, while the sum is 47.

The spelling of 49780943111 in words is "forty-nine billion, seven hundred eighty million, nine hundred forty-three thousand, one hundred eleven".