26487749000 has 32 divisors (see below), whose sum is σ = 61981335000. Its totient is φ = 10595099200.

The previous prime is 26487748993. The next prime is 26487749023. The reversal of 26487749000 is 94778462.

It can be written as a sum of positive squares in 4 ways, for example, as 11156851876 + 15330897124 = 105626^2 + 123818^2 .

It is an unprimeable number.

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, 13242875 + ... + 13244874.

Almost surely, 2^26487749000 is an apocalyptic number.

26487749000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26487749000 is an abundant number, since it is smaller than the sum of its proper divisors (35493586000).

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

26487749000 is a wasteful number, since it uses less digits than its factorization.

26487749000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26487770 (or 26487756 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 47.

The spelling of 26487749000 in words is "twenty-six billion, four hundred eighty-seven million, seven hundred forty-nine thousand".