2658189740 has 12 divisors (see below), whose sum is σ = 5582198496. Its totient is φ = 1063275888.

The previous prime is 2658189733. The next prime is 2658189757. The reversal of 2658189740 is 479818562.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66454724 + ... + 66454763.

It is an arithmetic number, because the mean of its divisors is an integer number (465183208).

Almost surely, 2^2658189740 is an apocalyptic number.

2658189740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2658189740 is an abundant number, since it is smaller than the sum of its proper divisors (2924008756).

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

2658189740 is a wasteful number, since it uses less digits than its factorization.

2658189740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132909496 (or 132909494 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 50.

The square root of 2658189740 is about 51557.6351280778. The cubic root of 2658189740 is about 1385.2515957844.

The spelling of 2658189740 in words is "two billion, six hundred fifty-eight million, one hundred eighty-nine thousand, seven hundred forty".