1919474451432 has 96 divisors (see below), whose sum is σ = 5474967170400. Its totient is φ = 605841752448.

The previous prime is 1919474451407. The next prime is 1919474451457. The reversal of 1919474451432 is 2341544749191.

1919474451432 is a `hidden beast` number, since 1 + 9 + 1 + 94 + 7 + 4 + 4 + 514 + 32 = 666.

It is an interprime number because it is at equal distance from previous prime (1919474451407) and next prime (1919474451457).

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2343483 + ... + 3054645.

It is an arithmetic number, because the mean of its divisors is an integer number (57030908025).

Almost surely, 2^{1919474451432} is an apocalyptic number.

1919474451432 is a gapful number since it is divisible by the number (12) 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 1919474451432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2737483585200).

1919474451432 is an abundant number, since it is smaller than the sum of its proper divisors (3555492718968).

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

1919474451432 is a wasteful number, since it uses less digits than its factorization.

1919474451432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713167 (or 713160 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The spelling of 1919474451432 in words is "one trillion, nine hundred nineteen billion, four hundred seventy-four million, four hundred fifty-one thousand, four hundred thirty-two".