2251957147746 has 16 divisors (see below), whose sum is σ = 4509565389504. Its totient is φ = 749710533584.

The previous prime is 2251957147717. The next prime is 2251957147757. The reversal of 2251957147746 is 6477417591522.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2251957147746.

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, 235457070 + ... + 235466633.

It is an arithmetic number, because the mean of its divisors is an integer number (281847836844).

Almost surely, 2^{2251957147746} is an apocalyptic number.

2251957147746 is an abundant number, since it is smaller than the sum of its proper divisors (2257608241758).

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

2251957147746 is a wasteful number, since it uses less digits than its factorization.

2251957147746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470924505.

The product of its digits is 29635200, while the sum is 60.

The spelling of 2251957147746 in words is "two trillion, two hundred fifty-one billion, nine hundred fifty-seven million, one hundred forty-seven thousand, seven hundred forty-six".