919045601604 has 36 divisors (see below), whose sum is σ = 2501846361196. Its totient is φ = 282783261888.

The previous prime is 919045601587. The next prime is 919045601623. The reversal of 919045601604 is 406106540919.

It is a happy number.

919045601604 is a `hidden beast` number, since 9 + 190 + 456 + 0 + 1 + 6 + 0 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 66821216004 + 852224385600 = 258498^2 + 923160^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 919045601604.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 981885859 + ... + 981886794.

Almost surely, 2^919045601604 is an apocalyptic number.

It is an amenable number.

919045601604 is an abundant number, since it is smaller than the sum of its proper divisors (1582800759592).

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

919045601604 is a wasteful number, since it uses less digits than its factorization.

919045601604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1963772676 (or 1963772671 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The spelling of 919045601604 in words is "nine hundred nineteen billion, forty-five million, six hundred one thousand, six hundred four".