109887590399 has 4 divisors (see below), whose sum is σ = 109890365664. Its totient is φ = 109884815136.

The previous prime is 109887590381. The next prime is 109887590401. The reversal of 109887590399 is 993095788901.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 109887590399 - 2⁸ = 109887590143 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 (109887590369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1327367 + ... + 1407720.

It is an arithmetic number, because the mean of its divisors is an integer number (27472591416).

Almost surely, 2^109887590399 is an apocalyptic number.

109887590399 is a deficient number, since it is larger than the sum of its proper divisors (2775265).

109887590399 is an equidigital number, since it uses as much as digits as its factorization.

109887590399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2775264.

The product of its (nonzero) digits is 44089920, while the sum is 68.

The spelling of 109887590399 in words is "one hundred nine billion, eight hundred eighty-seven million, five hundred ninety thousand, three hundred ninety-nine".