20102393495 has 12 divisors (see below), whose sum is σ = 25625336664. Its totient is φ = 15135918720.

The previous prime is 20102393429. The next prime is 20102393497. The reversal of 20102393495 is 59439320102.

It is a happy number.

It is not a de Polignac number, because 20102393495 - 2⁸ = 20102393239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20102393497) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6954401 + ... + 6957290.

It is an arithmetic number, because the mean of its divisors is an integer number (2135444722).

Almost surely, 2^20102393495 is an apocalyptic number.

20102393495 is a deficient number, since it is larger than the sum of its proper divisors (5522943169).

20102393495 is a wasteful number, since it uses less digits than its factorization.

20102393495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13911730 (or 13911713 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 38.

The spelling of 20102393495 in words is "twenty billion, one hundred two million, three hundred ninety-three thousand, four hundred ninety-five".