2642857146 has 20 divisors (see below), whose sum is σ = 5921958042. Its totient is φ = 880952328.

The previous prime is 2642857123. The next prime is 2642857177. The reversal of 2642857146 is 6417582462.

2642857146 is a `hidden beast` number, since 264 + 285 + 71 + 46 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1619177121 + 1023680025 = 40239^2 + 31995^2 .

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 8156805 + ... + 8157128.

Almost surely, 2^2642857146 is an apocalyptic number.

2642857146 is an abundant number, since it is smaller than the sum of its proper divisors (3279100896).

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

2642857146 is a wasteful number, since it uses less digits than its factorization.

2642857146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16313947 (or 16313938 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 2642857146 is about 51408.7263604147. The cubic root of 2642857146 is about 1382.5830543274.

The spelling of 2642857146 in words is "two billion, six hundred forty-two million, eight hundred fifty-seven thousand, one hundred forty-six".