19081477015225 has 45 divisors (see below), whose sum is σ = 25148147197963. Its totient is φ = 14362477112960.

The previous prime is 19081477015219. The next prime is 19081477015231. The reversal of 19081477015225 is 52251077418091.

It is a happy number.

The square root of 19081477015225 is 4368235.

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

It is an interprime number because it is at equal distance from previous prime (19081477015219) and next prime (19081477015231).

It can be written as a sum of positive squares in 7 ways, for example, as 2079280364841 + 17002196650384 = 1441971^2 + 4123372^2 .

It is not a de Polignac number, because 19081477015225 - 2⁵ = 19081477015193 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, 6312098064 + ... + 6312101086.

Almost surely, 2^{19081477015225} is an apocalyptic number.

19081477015225 is the 4368235-th square number.

19081477015225 is the 2184118-th centered octagonal number.

It is an amenable number.

19081477015225 is a deficient number, since it is larger than the sum of its proper divisors (6066670182738).

19081477015225 is an frugal number, since it uses more digits than its factorization.

19081477015225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6124 (or 3045 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 52.

The spelling of 19081477015225 in words is "nineteen trillion, eighty-one billion, four hundred seventy-seven million, fifteen thousand, two hundred twenty-five".