1912479345 has 48 divisors (see below), whose sum is σ = 4011396480. Its totient is φ = 822845952.

The previous prime is 1912479343. The next prime is 1912479367. The reversal of 1912479345 is 5439742191.

It is not a de Polignac number, because 1912479345 - 2¹ = 1912479343 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 1912479345.

It is not an unprimeable number, because it can be changed into a prime (1912479343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 173215 + ... + 183924.

It is an arithmetic number, because the mean of its divisors is an integer number (83570760).

Almost surely, 2^1912479345 is an apocalyptic number.

1912479345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1912479345 is an abundant number, since it is smaller than the sum of its proper divisors (2098917135).

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

1912479345 is a wasteful number, since it uses less digits than its factorization.

1912479345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357174 (or 357171 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 1912479345 is about 43731.9030571504. The cubic root of 1912479345 is about 1241.2680717090.

The spelling of 1912479345 in words is "one billion, nine hundred twelve million, four hundred seventy-nine thousand, three hundred forty-five".