2138695437084 has 48 divisors (see below), whose sum is σ = 5112655511040. Its totient is φ = 695458592640.

The previous prime is 2138695437071. The next prime is 2138695437089. The reversal of 2138695437084 is 4807345968312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2138695437089) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2144212 + ... + 2979099.

It is an arithmetic number, because the mean of its divisors is an integer number (106513656480).

It is a 1-persistent number, because it is pandigital, but 2⋅2138695437084 = 4277390874168 is not.

Almost surely, 2^{2138695437084} is an apocalyptic number.

It is an amenable number.

2138695437084 is an abundant number, since it is smaller than the sum of its proper divisors (2973960073956).

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

2138695437084 is a wasteful number, since it uses less digits than its factorization.

2138695437084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5124170 (or 5124168 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 60.

The spelling of 2138695437084 in words is "two trillion, one hundred thirty-eight billion, six hundred ninety-five million, four hundred thirty-seven thousand, eighty-four".