1382638188250 has 32 divisors (see below), whose sum is σ = 2823598574784. Its totient is φ = 502777522000.

The previous prime is 1382638188241. The next prime is 1382638188367. The reversal of 1382638188250 is 528818362831.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a junction number, because it is equal to n+sod(n) for n = 1382638188191 and 1382638188200.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 251386012 + ... + 251391511.

It is an arithmetic number, because the mean of its divisors is an integer number (88237455462).

Almost surely, 2^{1382638188250} is an apocalyptic number.

1382638188250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1382638188250 is an abundant number, since it is smaller than the sum of its proper divisors (1440960386534).

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

1382638188250 is a wasteful number, since it uses less digits than its factorization.

1382638188250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502777551 (or 502777541 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 55.

The spelling of 1382638188250 in words is "one trillion, three hundred eighty-two billion, six hundred thirty-eight million, one hundred eighty-eight thousand, two hundred fifty".