2091051902115 has 64 divisors (see below), whose sum is σ = 4186191974400. Its totient is φ = 981138700800.

The previous prime is 2091051902059. The next prime is 2091051902171. The reversal of 2091051902115 is 5112091501902.

2091051902115 is a `hidden beast` number, since 20 + 9 + 1 + 0 + 519 + 0 + 2 + 115 = 666.

It is an interprime number because it is at equal distance from previous prime (2091051902059) and next prime (2091051902171).

It is not a de Polignac number, because 2091051902115 - 2¹³ = 2091051893923 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2091051902115.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 22665510 + ... + 22757579.

It is an arithmetic number, because the mean of its divisors is an integer number (65409249600).

Almost surely, 2^{2091051902115} is an apocalyptic number.

2091051902115 is an abundant number, since it is smaller than the sum of its proper divisors (2095140072285).

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

2091051902115 is a wasteful number, since it uses less digits than its factorization.

2091051902115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45423145 (or 45423139 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 36.

The spelling of 2091051902115 in words is "two trillion, ninety-one billion, fifty-one million, nine hundred two thousand, one hundred fifteen".