1918291109102 has 16 divisors (see below), whose sum is σ = 2926696354560. Its totient is φ = 942832628088.

The previous prime is 1918291109099. The next prime is 1918291109113. The reversal of 1918291109102 is 2019011928191.

It is a happy number.

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, 26706608 + ... + 26778339.

It is an arithmetic number, because the mean of its divisors is an integer number (182918522160).

Almost surely, 2^{1918291109102} is an apocalyptic number.

1918291109102 is a deficient number, since it is larger than the sum of its proper divisors (1008405245458).

1918291109102 is a wasteful number, since it uses less digits than its factorization.

1918291109102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53485255.

The product of its (nonzero) digits is 23328, while the sum is 44.

The spelling of 1918291109102 in words is "one trillion, nine hundred eighteen billion, two hundred ninety-one million, one hundred nine thousand, one hundred two".