1919079464 has 24 divisors (see below), whose sum is σ = 3609278010. Its totient is φ = 956613024.

The previous prime is 1919079443. The next prime is 1919079467. The reversal of 1919079464 is 4649709191.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1340292100 + 578787364 = 36610^2 + 24058^2 .

It is not an unprimeable number, because it can be changed into a prime (1919079467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2187794 + ... + 2188670.

Almost surely, 2^1919079464 is an apocalyptic number.

It is an amenable number.

1919079464 is a deficient number, since it is larger than the sum of its proper divisors (1690198546).

1919079464 is an frugal number, since it uses more digits than its factorization.

1919079464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1929 (or 1402 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 50.

The square root of 1919079464 is about 43807.2992091501. The cubic root of 1919079464 is about 1242.6943373380.

The spelling of 1919079464 in words is "one billion, nine hundred nineteen million, seventy-nine thousand, four hundred sixty-four".