19950995097 has 36 divisors (see below), whose sum is σ = 32697962752. Its totient is φ = 11701443600.

The previous prime is 19950995089. The next prime is 19950995123. The reversal of 19950995097 is 79059905991.

It is not a de Polignac number, because 19950995097 - 2³ = 19950995089 is a prime.

It is a super-3 number, since 3×19950995097³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (19950995497) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 261733 + ... + 329250.

Almost surely, 2^19950995097 is an apocalyptic number.

It is an amenable number.

19950995097 is a deficient number, since it is larger than the sum of its proper divisors (12746967655).

19950995097 is a wasteful number, since it uses less digits than its factorization.

19950995097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591042 (or 591028 counting only the distinct ones).

The product of its (nonzero) digits is 10333575, while the sum is 63.

The spelling of 19950995097 in words is "nineteen billion, nine hundred fifty million, nine hundred ninety-five thousand, ninety-seven".