2064394157 has 24 divisors (see below), whose sum is σ = 2469382272. Its totient is φ = 1719748800.

The previous prime is 2064394153. The next prime is 2064394183. The reversal of 2064394157 is 7514934602.

It is not a de Polignac number, because 2064394157 - 2² = 2064394153 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2064394153) 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 23 ways as a sum of consecutive naturals, for example, 566732 + ... + 570362.

It is an arithmetic number, because the mean of its divisors is an integer number (102890928).

Almost surely, 2^2064394157 is an apocalyptic number.

It is an amenable number.

2064394157 is a deficient number, since it is larger than the sum of its proper divisors (404988115).

2064394157 is a wasteful number, since it uses less digits than its factorization.

2064394157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3969 (or 3962 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 2064394157 is about 45435.6045079187. The cubic root of 2064394157 is about 1273.3003947801.

The spelling of 2064394157 in words is "two billion, sixty-four million, three hundred ninety-four thousand, one hundred fifty-seven".