1385856156804 has 48 divisors (see below), whose sum is σ = 3697217462400. Its totient is φ = 395787361536.

The previous prime is 1385856156761. The next prime is 1385856156847. The reversal of 1385856156804 is 4086516585831.

It is an interprime number because it is at equal distance from previous prime (1385856156761) and next prime (1385856156847).

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, 3378649 + ... + 3766560.

It is an arithmetic number, because the mean of its divisors is an integer number (77025363800).

Almost surely, 2^{1385856156804} is an apocalyptic number.

1385856156804 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1385856156804 is an abundant number, since it is smaller than the sum of its proper divisors (2311361305596).

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

1385856156804 is a wasteful number, since it uses less digits than its factorization.

1385856156804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7147532 (or 7147530 counting only the distinct ones).

The product of its (nonzero) digits is 27648000, while the sum is 60.

The spelling of 1385856156804 in words is "one trillion, three hundred eighty-five billion, eight hundred fifty-six million, one hundred fifty-six thousand, eight hundred four".