26418749652 has 54 divisors (see below), whose sum is σ = 70480526298. Its totient is φ = 8342758944.

The previous prime is 26418749641. The next prime is 26418749653. The reversal of 26418749652 is 25694781462.

26418749652 is a `hidden beast` number, since 26 + 4 + 1 + 87 + 496 + 52 = 666.

It can be written as a sum of positive squares in only one way, i.e., 21325929156 + 5092820496 = 146034^2 + 71364^2 .

It is a super-2 number, since 2×26418749652² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26418749653) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1003423 + ... + 1029414.

Almost surely, 2^26418749652 is an apocalyptic number.

It is an amenable number.

26418749652 is an abundant number, since it is smaller than the sum of its proper divisors (44061776646).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26418749652 is a wasteful number, since it uses less digits than its factorization.

26418749652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2032885 (or 2032861 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The spelling of 26418749652 in words is "twenty-six billion, four hundred eighteen million, seven hundred forty-nine thousand, six hundred fifty-two".