1375559825840 has 20 divisors (see below), whose sum is σ = 3198176595264. Its totient is φ = 550223930304.

The previous prime is 1375559825833. The next prime is 1375559825863. The reversal of 1375559825840 is 485289555731.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×1375559825840² (a number of 25 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (62) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8597248832 + ... + 8597248991.

Almost surely, 2^{1375559825840} is an apocalyptic number.

1375559825840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1375559825840 is an abundant number, since it is smaller than the sum of its proper divisors (1822616769424).

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

1375559825840 is a wasteful number, since it uses less digits than its factorization.

1375559825840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17194497836 (or 17194497830 counting only the distinct ones).

The product of its (nonzero) digits is 60480000, while the sum is 62.

The spelling of 1375559825840 in words is "one trillion, three hundred seventy-five billion, five hundred fifty-nine million, eight hundred twenty-five thousand, eight hundred forty".