2115423942528 has 64 divisors (see below), whose sum is σ = 6051332926800. Its totient is φ = 650899673088.

The previous prime is 2115423942497. The next prime is 2115423942571. The reversal of 2115423942528 is 8252493245112.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 211876413 + ... + 211886396.

Almost surely, 2^{2115423942528} is an apocalyptic number.

It is an amenable number.

2115423942528 is an abundant number, since it is smaller than the sum of its proper divisors (3935908984272).

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

2115423942528 is a wasteful number, since it uses less digits than its factorization.

2115423942528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423762839 (or 423762827 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 48.

The spelling of 2115423942528 in words is "two trillion, one hundred fifteen billion, four hundred twenty-three million, nine hundred forty-two thousand, five hundred twenty-eight".