26400842954 has 8 divisors (see below), whose sum is σ = 41930750628. Its totient is φ = 12423926080.

The previous prime is 26400842947. The next prime is 26400842957. The reversal of 26400842954 is 45924800462.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 26397475729 + 3367225 = 162473^2 + 1835^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×26400842954² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26400842957) 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 3 ways as a sum of consecutive naturals, for example, 388247657 + ... + 388247724.

Almost surely, 2^26400842954 is an apocalyptic number.

26400842954 is a deficient number, since it is larger than the sum of its proper divisors (15529907674).

26400842954 is a wasteful number, since it uses less digits than its factorization.

26400842954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776495400.

The product of its (nonzero) digits is 552960, while the sum is 44.

The spelling of 26400842954 in words is "twenty-six billion, four hundred million, eight hundred forty-two thousand, nine hundred fifty-four".