112345777998 has 24 divisors (see below), whose sum is σ = 243980639136. Its totient is φ = 37361702400.

The previous prime is 112345777981. The next prime is 112345778071. The reversal of 112345777998 is 899777543211.

112345777998 is a `hidden beast` number, since 1 + 1 + 23 + 457 + 7 + 79 + 98 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7232883 + ... + 7248398.

It is an arithmetic number, because the mean of its divisors is an integer number (10165859964).

Almost surely, 2^112345777998 is an apocalyptic number.

112345777998 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

112345777998 is an abundant number, since it is smaller than the sum of its proper divisors (131634861138).

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

112345777998 is a wasteful number, since it uses less digits than its factorization.

112345777998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14481720 (or 14481717 counting only the distinct ones).

The product of its digits is 26671680, while the sum is 63.

The spelling of 112345777998 in words is "one hundred twelve billion, three hundred forty-five million, seven hundred seventy-seven thousand, nine hundred ninety-eight".