1385787565900 has 72 divisors (see below), whose sum is σ = 3138161644800. Its totient is φ = 530171019840.

The previous prime is 1385787565867. The next prime is 1385787565933. The reversal of 1385787565900 is 95657875831.

It is an interprime number because it is at equal distance from previous prime (1385787565867) and next prime (1385787565933).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51890751 + ... + 51917449.

It is an arithmetic number, because the mean of its divisors is an integer number (43585578400).

Almost surely, 2^{1385787565900} is an apocalyptic number.

1385787565900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1385787565900 is an abundant number, since it is smaller than the sum of its proper divisors (1752374078900).

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

1385787565900 is a wasteful number, since it uses less digits than its factorization.

1385787565900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49303 (or 49296 counting only the distinct ones).

The product of its (nonzero) digits is 63504000, while the sum is 64.

The spelling of 1385787565900 in words is "one trillion, three hundred eighty-five billion, seven hundred eighty-seven million, five hundred sixty-five thousand, nine hundred".