2657999142 has 12 divisors (see below), whose sum is σ = 5758998180. Its totient is φ = 885999708.

The previous prime is 2657999137. The next prime is 2657999153. The reversal of 2657999142 is 2419997562.

2657999142 is a `hidden beast` number, since 26 + 579 + 9 + 9 + 1 + 42 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73833292 + ... + 73833327.

It is an arithmetic number, because the mean of its divisors is an integer number (479916515).

Almost surely, 2^2657999142 is an apocalyptic number.

2657999142 is an abundant number, since it is smaller than the sum of its proper divisors (3100999038).

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

2657999142 is a wasteful number, since it uses less digits than its factorization.

2657999142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147666627 (or 147666624 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 54.

The square root of 2657999142 is about 51555.7866975183. The cubic root of 2657999142 is about 1385.2184864732.

The spelling of 2657999142 in words is "two billion, six hundred fifty-seven million, nine hundred ninety-nine thousand, one hundred forty-two".