2026782831218 has 4 divisors (see below), whose sum is σ = 3040174246830. Its totient is φ = 1013391415608.

The previous prime is 2026782831217. The next prime is 2026782831253. The reversal of 2026782831218 is 8121382876202.

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

It can be written as a sum of positive squares in only one way, i.e., 2011129568449 + 15653262769 = 1418143^2 + 125113^2 .

It is not an unprimeable number, because it can be changed into a prime (2026782831217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506695707803 + ... + 506695707806.

Almost surely, 2^{2026782831218} is an apocalyptic number.

2026782831218 is a deficient number, since it is larger than the sum of its proper divisors (1013391415612).

2026782831218 is a wasteful number, since it uses less digits than its factorization.

2026782831218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013391415611.

The product of its (nonzero) digits is 1032192, while the sum is 50.

The spelling of 2026782831218 in words is "two trillion, twenty-six billion, seven hundred eighty-two million, eight hundred thirty-one thousand, two hundred eighteen".