1387625137745 has 24 divisors (see below), whose sum is σ = 2091758891712. Its totient is φ = 865013070240.

The previous prime is 1387625137667. The next prime is 1387625137771. The reversal of 1387625137745 is 5477315267831.

It is not a de Polignac number, because 1387625137745 - 2²⁴ = 1387608360529 is a prime.

It is a Curzon 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, 163823999 + ... + 163832468.

It is an arithmetic number, because the mean of its divisors is an integer number (87156620488).

Almost surely, 2^{1387625137745} is an apocalyptic number.

It is an amenable number.

1387625137745 is a deficient number, since it is larger than the sum of its proper divisors (704133753967).

1387625137745 is a wasteful number, since it uses less digits than its factorization.

1387625137745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327656501 (or 327656490 counting only the distinct ones).

The product of its digits is 29635200, while the sum is 59.

The spelling of 1387625137745 in words is "one trillion, three hundred eighty-seven billion, six hundred twenty-five million, one hundred thirty-seven thousand, seven hundred forty-five".