112109477780 has 24 divisors (see below), whose sum is σ = 236730628680. Its totient is φ = 44596033920.

The previous prime is 112109477761. The next prime is 112109477791. The reversal of 112109477780 is 87774901211.

It can be written as a sum of positive squares in 4 ways, for example, as 12992808196 + 99116669584 = 113986^2 + 314828^2 .

It is a congruent 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, 15481115 + ... + 15488354.

It is an arithmetic number, because the mean of its divisors is an integer number (9863776195).

Almost surely, 2^112109477780 is an apocalyptic number.

112109477780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112109477780 is an abundant number, since it is smaller than the sum of its proper divisors (124621150900).

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

112109477780 is a wasteful number, since it uses less digits than its factorization.

112109477780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30969659 (or 30969657 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 47.

The spelling of 112109477780 in words is "one hundred twelve billion, one hundred nine million, four hundred seventy-seven thousand, seven hundred eighty".