26287423428 has 48 divisors (see below), whose sum is σ = 70110078080. Its totient is φ = 7509590784.

The previous prime is 26287423427. The next prime is 26287423439. The reversal of 26287423428 is 82432478262.

It is not an unprimeable number, because it can be changed into a prime (26287423427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 680850 + ... + 718422.

Almost surely, 2^26287423428 is an apocalyptic number.

26287423428 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

26287423428 is an abundant number, since it is smaller than the sum of its proper divisors (43822654652).

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

26287423428 is a wasteful number, since it uses less digits than its factorization.

26287423428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45916 (or 45914 counting only the distinct ones).

The product of its digits is 2064384, while the sum is 48.

The spelling of 26287423428 in words is "twenty-six billion, two hundred eighty-seven million, four hundred twenty-three thousand, four hundred twenty-eight".