1625117826280 has 32 divisors (see below), whose sum is σ = 3937785503400. Its totient is φ = 600043504896.

The previous prime is 1625117826271. The next prime is 1625117826427. The reversal of 1625117826280 is 826287115261.

It can be written as a sum of positive squares in 4 ways, for example, as 819615166276 + 805502660004 = 905326^2 + 897498^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1562612775 + ... + 1562613814.

Almost surely, 2^{1625117826280} is an apocalyptic number.

1625117826280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1625117826280 is an abundant number, since it is smaller than the sum of its proper divisors (2312667677120).

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

1625117826280 is a wasteful number, since it uses less digits than its factorization.

1625117826280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3125226613 (or 3125226609 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 49.

The spelling of 1625117826280 in words is "one trillion, six hundred twenty-five billion, one hundred seventeen million, eight hundred twenty-six thousand, two hundred eighty".