1912374855 has 24 divisors (see below), whose sum is σ = 3320085600. Its totient is φ = 1018301760.

The previous prime is 1912374839. The next prime is 1912374857. The reversal of 1912374855 is 5584732191.

It is not a de Polignac number, because 1912374855 - 2⁴ = 1912374839 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1912374855.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1912374857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5280 + ... + 62069.

It is an arithmetic number, because the mean of its divisors is an integer number (138336900).

Almost surely, 2^1912374855 is an apocalyptic number.

1912374855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1912374855 is a deficient number, since it is larger than the sum of its proper divisors (1407710745).

1912374855 is a wasteful number, since it uses less digits than its factorization.

1912374855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67991 (or 67988 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The square root of 1912374855 is about 43730.7083752367. The cubic root of 1912374855 is about 1241.2454653711.

The spelling of 1912374855 in words is "one billion, nine hundred twelve million, three hundred seventy-four thousand, eight hundred fifty-five".