2639037540139 has 32 divisors (see below), whose sum is σ = 3544042328064. Its totient is φ = 1897823537280.

The previous prime is 2639037540121. The next prime is 2639037540143. The reversal of 2639037540139 is 9310457309362.

It is a happy number.

It is not a de Polignac number, because 2639037540139 - 2¹³ = 2639037531947 is a prime.

It is a super-2 number, since 2×2639037540139² (a number of 26 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2639037544139) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4712902 + ... + 5243044.

It is an arithmetic number, because the mean of its divisors is an integer number (110751322752).

Almost surely, 2^{2639037540139} is an apocalyptic number.

2639037540139 is a deficient number, since it is larger than the sum of its proper divisors (905004787925).

2639037540139 is a wasteful number, since it uses less digits than its factorization.

2639037540139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535147.

The product of its (nonzero) digits is 3674160, while the sum is 52.

The spelling of 2639037540139 in words is "two trillion, six hundred thirty-nine billion, thirty-seven million, five hundred forty thousand, one hundred thirty-nine".