1626071280625 has 45 divisors (see below), whose sum is σ = 2233935014311. Its totient is φ = 1182342260000.

The previous prime is 1626071280607. The next prime is 1626071280637. The reversal of 1626071280625 is 5260821706261.

The square root of 1626071280625 is 1275175.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 1533121905249 + 92949375376 = 1238193^2 + 304876^2 .

It is not a de Polignac number, because 1626071280625 - 2⁷ = 1626071280497 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 350670807 + ... + 350675443.

Almost surely, 2^{1626071280625} is an apocalyptic number.

1626071280625 is the 1275175-th square number.

1626071280625 is the 637588-th centered octagonal number.

It is an amenable number.

1626071280625 is a deficient number, since it is larger than the sum of its proper divisors (607863733686).

1626071280625 is an frugal number, since it uses more digits than its factorization.

1626071280625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9316 (or 4653 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 46.

Adding to 1626071280625 its reverse (5260821706261), we get a palindrome (6886892986886).

The spelling of 1626071280625 in words is "one trillion, six hundred twenty-six billion, seventy-one million, two hundred eighty thousand, six hundred twenty-five".