2081650987375 has 64 divisors (see below), whose sum is σ = 2681702899200. Its totient is φ = 1612625318400.

The previous prime is 2081650987369. The next prime is 2081650987469. The reversal of 2081650987375 is 5737890561802.

It is a de Polignac number, because none of the positive numbers 2^k-2081650987375 is a prime.

It is a congruent number.

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, 141246007 + ... + 141260743.

It is an arithmetic number, because the mean of its divisors is an integer number (41901607800).

Almost surely, 2^{2081650987375} is an apocalyptic number.

2081650987375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2081650987375 is a deficient number, since it is larger than the sum of its proper divisors (600051911825).

2081650987375 is a wasteful number, since it uses less digits than its factorization.

2081650987375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15097 (or 15087 counting only the distinct ones).

The product of its (nonzero) digits is 25401600, while the sum is 61.

The spelling of 2081650987375 in words is "two trillion, eighty-one billion, six hundred fifty million, nine hundred eighty-seven thousand, three hundred seventy-five".