2638846746 has 24 divisors (see below), whose sum is σ = 5718476244. Its totient is φ = 879465600.

The previous prime is 2638846723. The next prime is 2638846757. The reversal of 2638846746 is 6476488362.

2638846746 is a `hidden beast` number, since 2 + 63 + 88 + 467 + 46 = 666.

2638846746 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2620313721 + 18533025 = 51189^2 + 4305^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2638846692 and 2638846701.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 161346 + ... + 176946.

Almost surely, 2^2638846746 is an apocalyptic number.

2638846746 is an abundant number, since it is smaller than the sum of its proper divisors (3079629498).

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

2638846746 is a wasteful number, since it uses less digits than its factorization.

2638846746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25006 (or 25003 counting only the distinct ones).

The product of its digits is 9289728, while the sum is 54.

The square root of 2638846746 is about 51369.7065010109. The cubic root of 2638846746 is about 1381.8833673666.

The spelling of 2638846746 in words is "two billion, six hundred thirty-eight million, eight hundred forty-six thousand, seven hundred forty-six".