2139037858 has 24 divisors (see below), whose sum is σ = 3441094272. Its totient is φ = 995339664.

The previous prime is 2139037843. The next prime is 2139037867. The reversal of 2139037858 is 8587309312.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45991 + ... + 79957.

It is an arithmetic number, because the mean of its divisors is an integer number (143378928).

Almost surely, 2^2139037858 is an apocalyptic number.

2139037858 is a deficient number, since it is larger than the sum of its proper divisors (1302056414).

2139037858 is a wasteful number, since it uses less digits than its factorization.

2139037858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34066 (or 34029 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 2139037858 is about 46249.7335992328. The cubic root of 2139037858 is about 1288.4655870029.

The spelling of 2139037858 in words is "two billion, one hundred thirty-nine million, thirty-seven thousand, eight hundred fifty-eight".