19394415102 has 16 divisors (see below), whose sum is σ = 38790915840. Its totient is φ = 6464457432.

The previous prime is 19394415077. The next prime is 19394415119. The reversal of 19394415102 is 20151449391.

It is a super-2 number, since 2×19394415102² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50763 + ... + 203385.

It is an arithmetic number, because the mean of its divisors is an integer number (2424432240).

Almost surely, 2^19394415102 is an apocalyptic number.

19394415102 is an abundant number, since it is smaller than the sum of its proper divisors (19396500738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19394415102 is a wasteful number, since it uses less digits than its factorization.

19394415102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173807.

The product of its (nonzero) digits is 38880, while the sum is 39.

The spelling of 19394415102 in words is "nineteen billion, three hundred ninety-four million, four hundred fifteen thousand, one hundred two".