26520276464 has 40 divisors (see below), whose sum is σ = 56632135728. Its totient is φ = 11930388480.

The previous prime is 26520276463. The next prime is 26520276499. The reversal of 26520276464 is 46467202562.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26520276463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 759647 + ... + 793790.

Almost surely, 2^26520276464 is an apocalyptic number.

It is an amenable number.

26520276464 is an abundant number, since it is smaller than the sum of its proper divisors (30111859264).

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

26520276464 is a wasteful number, since it uses less digits than its factorization.

26520276464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1553553 (or 1553547 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 44.

The spelling of 26520276464 in words is "twenty-six billion, five hundred twenty million, two hundred seventy-six thousand, four hundred sixty-four".