19025858097 has 20 divisors (see below), whose sum is σ = 29189492596. Its totient is φ = 12341095200.

The previous prime is 19025858087. The next prime is 19025858141. The reversal of 19025858097 is 79085852091.

19025858097 is a `hidden beast` number, since 1 + 9 + 0 + 2 + 58 + 580 + 9 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 12776006961 + 6249851136 = 113031^2 + 79056^2 .

It is not a de Polignac number, because 19025858097 - 2⁴ = 19025858081 is a prime.

It is a super-2 number, since 2×19025858097² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19025858087) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3171154 + ... + 3177147.

Almost surely, 2^19025858097 is an apocalyptic number.

It is an amenable number.

19025858097 is a deficient number, since it is larger than the sum of its proper divisors (10163634499).

19025858097 is an equidigital number, since it uses as much as digits as its factorization.

19025858097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6348350 (or 6348341 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 54.

The spelling of 19025858097 in words is "nineteen billion, twenty-five million, eight hundred fifty-eight thousand, ninety-seven".