111519704489 has 12 divisors (see below), whose sum is σ = 124621504884. Its totient is φ = 99435520512.

The previous prime is 111519704411. The next prime is 111519704501. The reversal of 111519704489 is 984407915111.

It can be written as a sum of positive squares in 2 ways, for example, as 61526322025 + 49993382464 = 248045^2 + 223592^2 .

It is not a de Polignac number, because 111519704489 - 2¹² = 111519700393 is a prime.

It is a super-2 number, since 2×111519704489² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (111519704689) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9079712 + ... + 9091985.

It is an arithmetic number, because the mean of its divisors is an integer number (10385125407).

Almost surely, 2^111519704489 is an apocalyptic number.

111519704489 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

111519704489 is a deficient number, since it is larger than the sum of its proper divisors (13101800395).

111519704489 is a wasteful number, since it uses less digits than its factorization.

111519704489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18171752 (or 18171733 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 50.

The spelling of 111519704489 in words is "one hundred eleven billion, five hundred nineteen million, seven hundred four thousand, four hundred eighty-nine".