19677075625 has 45 divisors (see below), whose sum is σ = 25548383619. Its totient is φ = 15149700000.

The previous prime is 19677075619. The next prime is 19677075641. The reversal of 19677075625 is 52657077691.

The square root of 19677075625 is 140275.

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 19055869849 + 621205776 = 138043^2 + 24924^2 .

It is not a de Polignac number, because 19677075625 - 2²¹ = 19674978473 is a prime.

It is a Duffinian number.

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, 108713035 + ... + 108713215.

Almost surely, 2^19677075625 is an apocalyptic number.

19677075625 is the 140275-th square number.

19677075625 is the 70138-th centered octagonal number.

It is an amenable number.

19677075625 is a deficient number, since it is larger than the sum of its proper divisors (5871307994).

19677075625 is an frugal number, since it uses more digits than its factorization.

19677075625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444 (or 217 counting only the distinct ones).

The product of its (nonzero) digits is 5556600, while the sum is 55.

The spelling of 19677075625 in words is "nineteen billion, six hundred seventy-seven million, seventy-five thousand, six hundred twenty-five".