19412954208 has 192 divisors, whose sum is σ = 61056979200. Its totient is φ = 5980677120.

The previous prime is 19412954153. The next prime is 19412954221. The reversal of 19412954208 is 80245921491.

It is a happy number.

19412954208 is a `hidden beast` number, since 1 + 94 + 12 + 9 + 542 + 0 + 8 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 658635 + ... + 687477.

It is an arithmetic number, because the mean of its divisors is an integer number (318005100).

Almost surely, 2^19412954208 is an apocalyptic number.

19412954208 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19412954208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30528489600).

19412954208 is an abundant number, since it is smaller than the sum of its proper divisors (41644024992).

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

19412954208 is a wasteful number, since it uses less digits than its factorization.

19412954208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28922 (or 28908 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The spelling of 19412954208 in words is "nineteen billion, four hundred twelve million, nine hundred fifty-four thousand, two hundred eight".