1387652752650 has 48 divisors (see below), whose sum is σ = 3534389079264. Its totient is φ = 360039631680.

The previous prime is 1387652752639. The next prime is 1387652752697. The reversal of 1387652752650 is 562572567831.

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, 125008212 + ... + 125019311.

It is an arithmetic number, because the mean of its divisors is an integer number (73633105818).

Almost surely, 2^{1387652752650} is an apocalyptic number.

1387652752650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1387652752650 is an abundant number, since it is smaller than the sum of its proper divisors (2146736326614).

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

1387652752650 is a wasteful number, since it uses less digits than its factorization.

1387652752650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250027575 (or 250027570 counting only the distinct ones).

The product of its (nonzero) digits is 21168000, while the sum is 57.

The spelling of 1387652752650 in words is "one trillion, three hundred eighty-seven billion, six hundred fifty-two million, seven hundred fifty-two thousand, six hundred fifty".