2139000157905 has 16 divisors (see below), whose sum is σ = 3685661810880. Its totient is φ = 1053046231488.

The previous prime is 2139000157859. The next prime is 2139000157949. The reversal of 2139000157905 is 5097510009312.

It is not a de Polignac number, because 2139000157905 - 2¹⁵ = 2139000125137 is a prime.

It is a super-2 number, since 2×2139000157905² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5484615595 + ... + 5484615984.

It is an arithmetic number, because the mean of its divisors is an integer number (230353863180).

Almost surely, 2^{2139000157905} is an apocalyptic number.

It is an amenable number.

2139000157905 is a deficient number, since it is larger than the sum of its proper divisors (1546661652975).

2139000157905 is a wasteful number, since it uses less digits than its factorization.

2139000157905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10969231600.

The product of its (nonzero) digits is 85050, while the sum is 42.

The spelling of 2139000157905 in words is "two trillion, one hundred thirty-nine billion, one hundred fifty-seven thousand, nine hundred five".