2115942985508 has 24 divisors (see below), whose sum is σ = 4039602228480. Its totient is φ = 961774477920.

The previous prime is 2115942985493. The next prime is 2115942985537. The reversal of 2115942985508 is 8055892495112.

It is a happy 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, 2128685 + ... + 2960267.

It is an arithmetic number, because the mean of its divisors is an integer number (168316759520).

Almost surely, 2^{2115942985508} is an apocalyptic number.

It is an amenable number.

2115942985508 is a deficient number, since it is larger than the sum of its proper divisors (1923659242972).

2115942985508 is a wasteful number, since it uses less digits than its factorization.

2115942985508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889427 (or 889425 counting only the distinct ones).

The product of its (nonzero) digits is 10368000, while the sum is 59.

The spelling of 2115942985508 in words is "two trillion, one hundred fifteen billion, nine hundred forty-two million, nine hundred eighty-five thousand, five hundred eight".