26501403340 has 24 divisors (see below), whose sum is σ = 55680623712. Its totient is φ = 10595289600.

The previous prime is 26501403337. The next prime is 26501403361. The reversal of 26501403340 is 4330410562.

It is a junction number, because it is equal to n+sod(n) for n = 26501403299 and 26501403308.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288136 + ... + 368815.

It is an arithmetic number, because the mean of its divisors is an integer number (2320025988).

Almost surely, 2^26501403340 is an apocalyptic number.

26501403340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26501403340 is an abundant number, since it is smaller than the sum of its proper divisors (29179220372).

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

26501403340 is a wasteful number, since it uses less digits than its factorization.

26501403340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658977 (or 658975 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The spelling of 26501403340 in words is "twenty-six billion, five hundred one million, four hundred three thousand, three hundred forty".