26831164450 has 48 divisors (see below), whose sum is σ = 52566323040. Its totient is φ = 10161072000.

The previous prime is 26831164439. The next prime is 26831164463. The reversal of 26831164450 is 5446113862.

It is a happy number.

It is a super-2 number, since 2×26831164450² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1626745 + ... + 1643155.

It is an arithmetic number, because the mean of its divisors is an integer number (1095131730).

Almost surely, 2^26831164450 is an apocalyptic number.

26831164450 is a deficient number, since it is larger than the sum of its proper divisors (25735158590).

26831164450 is a wasteful number, since it uses less digits than its factorization.

26831164450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18163 (or 18158 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The spelling of 26831164450 in words is "twenty-six billion, eight hundred thirty-one million, one hundred sixty-four thousand, four hundred fifty".