19312228863900 has 576 divisors, whose sum is σ = 74734800000000. Its totient is φ = 4179332505600.

The previous prime is 19312228863859. The next prime is 19312228863913. The reversal of 19312228863900 is 936882221391.

19312228863900 is a `hidden beast` number, since 19 + 3 + 12 + 228 + 8 + 6 + 390 + 0 = 666.

It is a super-3 number, since 3×19312228863900³ (a number of 41 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 617995476 + ... + 618026724.

Almost surely, 2^{19312228863900} is an apocalyptic number.

19312228863900 is a gapful number since it is divisible by the number (10) 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 19312228863900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37367400000000).

19312228863900 is an abundant number, since it is smaller than the sum of its proper divisors (55422571136100).

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

19312228863900 is a wasteful number, since it uses less digits than its factorization.

19312228863900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33019 (or 33006 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The spelling of 19312228863900 in words is "nineteen trillion, three hundred twelve billion, two hundred twenty-eight million, eight hundred sixty-three thousand, nine hundred".