2538988366 has 4 divisors (see below), whose sum is σ = 3808482552. Its totient is φ = 1269494182.

The previous prime is 2538988357. The next prime is 2538988379. The reversal of 2538988366 is 6638898352.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2538988366.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 634747090 + ... + 634747093.

It is an arithmetic number, because the mean of its divisors is an integer number (952120638).

Almost surely, 2^2538988366 is an apocalyptic number.

2538988366 is a deficient number, since it is larger than the sum of its proper divisors (1269494186).

2538988366 is a wasteful number, since it uses less digits than its factorization.

2538988366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1269494185.

The product of its digits is 14929920, while the sum is 58.

The square root of 2538988366 is about 50388.3753062152. The cubic root of 2538988366 is about 1364.2278262703.

The spelling of 2538988366 in words is "two billion, five hundred thirty-eight million, nine hundred eighty-eight thousand, three hundred sixty-six".