19649065095 has 24 divisors (see below), whose sum is σ = 37154596752. Its totient is φ = 9526819200.

The previous prime is 19649065091. The next prime is 19649065123. The reversal of 19649065095 is 59056094691.

19649065095 is a `hidden beast` number, since 1 + 9 + 6 + 490 + 65 + 0 + 95 = 666.

It is not a de Polignac number, because 19649065095 - 2² = 19649065091 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19649065091) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19847046 + ... + 19848035.

It is an arithmetic number, because the mean of its divisors is an integer number (1548108198).

Almost surely, 2^19649065095 is an apocalyptic number.

19649065095 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

19649065095 is a deficient number, since it is larger than the sum of its proper divisors (17505531657).

19649065095 is a wasteful number, since it uses less digits than its factorization.

19649065095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39695103 (or 39695100 counting only the distinct ones).

The product of its (nonzero) digits is 2624400, while the sum is 54.

The spelling of 19649065095 in words is "nineteen billion, six hundred forty-nine million, sixty-five thousand, ninety-five".