2138865600425 has 24 divisors (see below), whose sum is σ = 2765077470144. Its totient is φ = 1639765632960.

The previous prime is 2138865600353. The next prime is 2138865600463. The reversal of 2138865600425 is 5240065688312.

It is not a de Polignac number, because 2138865600425 - 2¹⁴ = 2138865584041 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18713237 + ... + 18827186.

It is an arithmetic number, because the mean of its divisors is an integer number (115211561256).

Almost surely, 2^{2138865600425} is an apocalyptic number.

2138865600425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2138865600425 is a deficient number, since it is larger than the sum of its proper divisors (626211869719).

2138865600425 is a wasteful number, since it uses less digits than its factorization.

2138865600425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37540529 (or 37540524 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 50.

The spelling of 2138865600425 in words is "two trillion, one hundred thirty-eight billion, eight hundred sixty-five million, six hundred thousand, four hundred twenty-five".