1912861474 has 8 divisors (see below), whose sum is σ = 2869493760. Its totient is φ = 956363556.

The previous prime is 1912861453. The next prime is 1912861477. The reversal of 1912861474 is 4741682191.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1912861474.

It is not an unprimeable number, because it can be changed into a prime (1912861477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17607 + ... + 64309.

It is an arithmetic number, because the mean of its divisors is an integer number (358686720).

Almost surely, 2^1912861474 is an apocalyptic number.

1912861474 is a deficient number, since it is larger than the sum of its proper divisors (956632286).

1912861474 is a wasteful number, since it uses less digits than its factorization.

1912861474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67184.

The product of its digits is 96768, while the sum is 43.

The square root of 1912861474 is about 43736.2718347140. The cubic root of 1912861474 is about 1241.3507380378.

The spelling of 1912861474 in words is "one billion, nine hundred twelve million, eight hundred sixty-one thousand, four hundred seventy-four".