1914953919 has 8 divisors (see below), whose sum is σ = 2554545840. Its totient is φ = 1275998976.

The previous prime is 1914953903. The next prime is 1914953977. The reversal of 1914953919 is 9193594191.

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

It is not a de Polignac number, because 1914953919 - 2⁴ = 1914953903 is a prime.

It is a super-2 number, since 2×1914953919² = 7334097023786917122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1914958919) 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 7 ways as a sum of consecutive naturals, for example, 152184 + ... + 164285.

It is an arithmetic number, because the mean of its divisors is an integer number (319318230).

Almost surely, 2^1914953919 is an apocalyptic number.

1914953919 is a deficient number, since it is larger than the sum of its proper divisors (639591921).

1914953919 is a wasteful number, since it uses less digits than its factorization.

1914953919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318489.

The product of its digits is 393660, while the sum is 51.

The square root of 1914953919 is about 43760.1864598404. The cubic root of 1914953919 is about 1241.8032035632.

The spelling of 1914953919 in words is "one billion, nine hundred fourteen million, nine hundred fifty-three thousand, nine hundred nineteen".