2257213685946 has 16 divisors (see below), whose sum is σ = 4517459241600. Its totient is φ = 751899250368.

The previous prime is 2257213685941. The next prime is 2257213685953. The reversal of 2257213685946 is 6495863127522.

It is a self number, because there is not a number n which added to its sum of digits gives 2257213685946.

It is not an unprimeable number, because it can be changed into a prime (2257213685941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126318226 + ... + 126336093.

It is an arithmetic number, because the mean of its divisors is an integer number (282341202600).

Almost surely, 2^{2257213685946} is an apocalyptic number.

2257213685946 is an abundant number, since it is smaller than the sum of its proper divisors (2260245555654).

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

2257213685946 is a wasteful number, since it uses less digits than its factorization.

2257213685946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252655813.

The product of its digits is 43545600, while the sum is 60.

The spelling of 2257213685946 in words is "two trillion, two hundred fifty-seven billion, two hundred thirteen million, six hundred eighty-five thousand, nine hundred forty-six".