26742731530664 has 32 divisors (see below), whose sum is σ = 50304799508040. Its totient is φ = 13328179987200.

The previous prime is 26742731530661. The next prime is 26742731530687. The reversal of 26742731530664 is 46603513724762.

It can be written as a sum of positive squares in 4 ways, for example, as 13076830116100 + 13665901414564 = 3616190^2 + 3696742^2 .

It is not an unprimeable number, because it can be changed into a prime (26742731530661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 382559 + ... + 7323374.

Almost surely, 2^{26742731530664} is an apocalyptic number.

It is an amenable number.

26742731530664 is a deficient number, since it is larger than the sum of its proper divisors (23562067977376).

26742731530664 is a wasteful number, since it uses less digits than its factorization.

26742731530664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7707341 (or 7707337 counting only the distinct ones).

The product of its (nonzero) digits is 30481920, while the sum is 56.

The spelling of 26742731530664 in words is "twenty-six trillion, seven hundred forty-two billion, seven hundred thirty-one million, five hundred thirty thousand, six hundred sixty-four".