5138939819955 has 32 divisors (see below), whose sum is σ = 8580003356160. Its totient is φ = 2621540472320.

The previous prime is 5138939819947. The next prime is 5138939819963. The reversal of 5138939819955 is 5599189398315.

It is an interprime number because it is at equal distance from previous prime (5138939819947) and next prime (5138939819963).

It is not a de Polignac number, because 5138939819955 - 2³ = 5138939819947 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16210156 + ... + 16524134.

It is an arithmetic number, because the mean of its divisors is an integer number (268125104880).

Almost surely, 2^{5138939819955} is an apocalyptic number.

5138939819955 is a deficient number, since it is larger than the sum of its proper divisors (3441063536205).

5138939819955 is a wasteful number, since it uses less digits than its factorization.

5138939819955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361451.

The product of its digits is 472392000, while the sum is 75.

The spelling of 5138939819955 in words is "five trillion, one hundred thirty-eight billion, nine hundred thirty-nine million, eight hundred nineteen thousand, nine hundred fifty-five".