919057164 has 12 divisors (see below), whose sum is σ = 2144466744. Its totient is φ = 306352384.

The previous prime is 919057163. The next prime is 919057177. The reversal of 919057164 is 461750919.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (919057163) 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, 38294037 + ... + 38294060.

It is an arithmetic number, because the mean of its divisors is an integer number (178705562).

Almost surely, 2^919057164 is an apocalyptic number.

It is an amenable number.

919057164 is an abundant number, since it is smaller than the sum of its proper divisors (1225409580).

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

919057164 is a wasteful number, since it uses less digits than its factorization.

919057164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76588104 (or 76588102 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 42.

The square root of 919057164 is about 30315.9556009703. The cubic root of 919057164 is about 972.2564692667.

The spelling of 919057164 in words is "nine hundred nineteen million, fifty-seven thousand, one hundred sixty-four".