111861425494 has 48 divisors (see below), whose sum is σ = 210150243072. Its totient is φ = 43719627744.

The previous prime is 111861425479. The next prime is 111861425509. The reversal of 111861425494 is 494524168111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (111861425479) and next prime (111861425509).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 88434 + ... + 481189.

It is an arithmetic number, because the mean of its divisors is an integer number (4378130064).

Almost surely, 2^111861425494 is an apocalyptic number.

111861425494 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

111861425494 is a deficient number, since it is larger than the sum of its proper divisors (98288817578).

111861425494 is a wasteful number, since it uses less digits than its factorization.

111861425494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569741 (or 569728 counting only the distinct ones).

The product of its digits is 276480, while the sum is 46.

The spelling of 111861425494 in words is "one hundred eleven billion, eight hundred sixty-one million, four hundred twenty-five thousand, four hundred ninety-four".