1387738866025 has 12 divisors (see below), whose sum is σ = 1728376800912. Its totient is φ = 1105300378640.

The previous prime is 1387738865999. The next prime is 1387738866029. The reversal of 1387738866025 is 5206688377831.

It is not a de Polignac number, because 1387738866025 - 2⁷ = 1387738865897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1387738866029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 122262067 + ... + 122273416.

It is an arithmetic number, because the mean of its divisors is an integer number (144031400076).

Almost surely, 2^{1387738866025} is an apocalyptic number.

It is an amenable number.

1387738866025 is a deficient number, since it is larger than the sum of its proper divisors (340637934887).

1387738866025 is a wasteful number, since it uses less digits than its factorization.

1387738866025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244535720 (or 244535715 counting only the distinct ones).

The product of its (nonzero) digits is 81285120, while the sum is 64.

The spelling of 1387738866025 in words is "one trillion, three hundred eighty-seven billion, seven hundred thirty-eight million, eight hundred sixty-six thousand, twenty-five".