1387515127650 has 24 divisors (see below), whose sum is σ = 3441037516944. Its totient is φ = 370004034000.

The previous prime is 1387515127553. The next prime is 1387515127651. The reversal of 1387515127650 is 567215157831.

It is a junction number, because it is equal to n+sod(n) for n = 1387515127593 and 1387515127602.

It is not an unprimeable number, because it can be changed into a prime (1387515127651) 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, 4625050276 + ... + 4625050575.

It is an arithmetic number, because the mean of its divisors is an integer number (143376563206).

Almost surely, 2^{1387515127650} is an apocalyptic number.

1387515127650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1387515127650 is an abundant number, since it is smaller than the sum of its proper divisors (2053522389294).

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

1387515127650 is a wasteful number, since it uses less digits than its factorization.

1387515127650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9250100866 (or 9250100861 counting only the distinct ones).

The product of its (nonzero) digits is 1764000, while the sum is 51.

The spelling of 1387515127650 in words is "one trillion, three hundred eighty-seven billion, five hundred fifteen million, one hundred twenty-seven thousand, six hundred fifty".