2257863855906 has 32 divisors (see below), whose sum is σ = 4523124953088. Its totient is φ = 751388608080.

The previous prime is 2257863855901. The next prime is 2257863855911. The reversal of 2257863855906 is 6095583687522.

It is an interprime number because it is at equal distance from previous prime (2257863855901) and next prime (2257863855911).

It is not an unprimeable number, because it can be changed into a prime (2257863855901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88995235 + ... + 89020601.

It is an arithmetic number, because the mean of its divisors is an integer number (141347654784).

Almost surely, 2^{2257863855906} is an apocalyptic number.

2257863855906 is an abundant number, since it is smaller than the sum of its proper divisors (2265261097182).

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

2257863855906 is a wasteful number, since it uses less digits than its factorization.

2257863855906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49086.

The product of its (nonzero) digits is 217728000, while the sum is 66.

The spelling of 2257863855906 in words is "two trillion, two hundred fifty-seven billion, eight hundred sixty-three million, eight hundred fifty-five thousand, nine hundred six".