2158008348728 has 16 divisors (see below), whose sum is σ = 4048259901000. Its totient is φ = 1078472375136.

The previous prime is 2158008348659. The next prime is 2158008348731. The reversal of 2158008348728 is 8278438008512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66457658 + ... + 66490121.

Almost surely, 2^{2158008348728} is an apocalyptic number.

It is an amenable number.

2158008348728 is a deficient number, since it is larger than the sum of its proper divisors (1890251552272).

2158008348728 is a wasteful number, since it uses less digits than its factorization.

2158008348728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132949814 (or 132949810 counting only the distinct ones).

The product of its (nonzero) digits is 6881280, while the sum is 56.

The spelling of 2158008348728 in words is "two trillion, one hundred fifty-eight billion, eight million, three hundred forty-eight thousand, seven hundred twenty-eight".