2138237859516 has 48 divisors (see below), whose sum is σ = 5451754183680. Its totient is φ = 646883377920.

The previous prime is 2138237859463. The next prime is 2138237859551. The reversal of 2138237859516 is 6159587328312.

It is a super-2 number, since 2×2138237859516² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2138237859516.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13263181 + ... + 13423428.

It is an arithmetic number, because the mean of its divisors is an integer number (113578212160).

Almost surely, 2^{2138237859516} is an apocalyptic number.

It is an amenable number.

2138237859516 is an abundant number, since it is smaller than the sum of its proper divisors (3313516324164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2138237859516 is a wasteful number, since it uses less digits than its factorization.

2138237859516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26687234 (or 26687232 counting only the distinct ones).

The product of its digits is 21772800, while the sum is 60.

The spelling of 2138237859516 in words is "two trillion, one hundred thirty-eight billion, two hundred thirty-seven million, eight hundred fifty-nine thousand, five hundred sixteen".