2558776940 has 24 divisors (see below), whose sum is σ = 5376042672. Its totient is φ = 1023013440.

The previous prime is 2558776937. The next prime is 2558777003. The reversal of 2558776940 is 496778552.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12602 + ... + 72638.

It is an arithmetic number, because the mean of its divisors is an integer number (224001778).

Almost surely, 2^2558776940 is an apocalyptic number.

2558776940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2558776940 is an abundant number, since it is smaller than the sum of its proper divisors (2817265732).

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

2558776940 is a wasteful number, since it uses less digits than its factorization.

2558776940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62177 (or 62175 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 53.

The square root of 2558776940 is about 50584.3546958939. The cubic root of 2558776940 is about 1367.7628681402.

The spelling of 2558776940 in words is "two billion, five hundred fifty-eight million, seven hundred seventy-six thousand, nine hundred forty".