2657845994 has 16 divisors (see below), whose sum is σ = 4223016000. Its totient is φ = 1250238144.

The previous prime is 2657845991. The next prime is 2657846047. The reversal of 2657845994 is 4995487562.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2657845991) 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, 75707 + ... + 105105.

It is an arithmetic number, because the mean of its divisors is an integer number (263938500).

Almost surely, 2^2657845994 is an apocalyptic number.

2657845994 is a deficient number, since it is larger than the sum of its proper divisors (1565170006).

2657845994 is a wasteful number, since it uses less digits than its factorization.

2657845994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32077.

The product of its digits is 21772800, while the sum is 59.

The square root of 2657845994 is about 51554.3014112305. The cubic root of 2657845994 is about 1385.1918815592.

The spelling of 2657845994 in words is "two billion, six hundred fifty-seven million, eight hundred forty-five thousand, nine hundred ninety-four".