2138538710392 has 32 divisors (see below), whose sum is σ = 4823771529600. Its totient is φ = 868278874464.

The previous prime is 2138538710369. The next prime is 2138538710423. The reversal of 2138538710392 is 2930178358312.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1004951338 + ... + 1004953465.

It is an arithmetic number, because the mean of its divisors is an integer number (150742860300).

Almost surely, 2^{2138538710392} is an apocalyptic number.

It is an amenable number.

2138538710392 is an abundant number, since it is smaller than the sum of its proper divisors (2685232819208).

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

2138538710392 is a wasteful number, since it uses less digits than its factorization.

2138538710392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2009904835 (or 2009904831 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 52.

The spelling of 2138538710392 in words is "two trillion, one hundred thirty-eight billion, five hundred thirty-eight million, seven hundred ten thousand, three hundred ninety-two".