2638778362 has 32 divisors (see below), whose sum is σ = 4512858624. Its totient is φ = 1145482800.

The previous prime is 2638778347. The next prime is 2638778371.

2638778362 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 345873 + ... + 353419.

It is an arithmetic number, because the mean of its divisors is an integer number (141026832).

Almost surely, 2^2638778362 is an apocalyptic number.

2638778362 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2638778362 is a deficient number, since it is larger than the sum of its proper divisors (1874080262).

2638778362 is a wasteful number, since it uses less digits than its factorization.

2638778362 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8274.

The product of its digits is 4064256, while the sum is 52.

The square root of 2638778362 is about 51369.0408904040. The cubic root of 2638778362 is about 1381.8714303934.

The spelling of 2638778362 in words is "two billion, six hundred thirty-eight million, seven hundred seventy-eight thousand, three hundred sixty-two".