1378800835625 has 10 divisors (see below), whose sum is σ = 1722949524978. Its totient is φ = 1103040668000.

The previous prime is 1378800835603. The next prime is 1378800835639. The reversal of 1378800835625 is 5265380088731.

It can be written as a sum of positive squares in 5 ways, for example, as 242163394201 + 1136637441424 = 492101^2 + 1066132^2 .

It is not a de Polignac number, because 1378800835625 - 2²⁴ = 1378784058409 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1103040044 + ... + 1103041293.

Almost surely, 2^{1378800835625} is an apocalyptic number.

It is an amenable number.

1378800835625 is a deficient number, since it is larger than the sum of its proper divisors (344148689353).

1378800835625 is an frugal number, since it uses more digits than its factorization.

1378800835625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2206081357 (or 2206081342 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 56.

The spelling of 1378800835625 in words is "one trillion, three hundred seventy-eight billion, eight hundred million, eight hundred thirty-five thousand, six hundred twenty-five".