19940375102 has 8 divisors (see below), whose sum is σ = 29955815112. Its totient is φ = 9955103400.

The previous prime is 19940375087. The next prime is 19940375107. The reversal of 19940375102 is 20157304991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 19940375102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19940375107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7540424 + ... + 7543067.

It is an arithmetic number, because the mean of its divisors is an integer number (3744476889).

Almost surely, 2^19940375102 is an apocalyptic number.

19940375102 is a deficient number, since it is larger than the sum of its proper divisors (10015440010).

19940375102 is a wasteful number, since it uses less digits than its factorization.

19940375102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15084154.

The product of its (nonzero) digits is 68040, while the sum is 41.

The spelling of 19940375102 in words is "nineteen billion, nine hundred forty million, three hundred seventy-five thousand, one hundred two".