26405720060 has 48 divisors (see below), whose sum is σ = 58708087200. Its totient is φ = 9948513024.

The previous prime is 26405720039. The next prime is 26405720111. The reversal of 26405720060 is 6002750462.

It is a junction number, because it is equal to n+sod(n) for n = 26405719999 and 26405720026.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135095 + ... + 266574.

It is an arithmetic number, because the mean of its divisors is an integer number (1223085150).

Almost surely, 2^26405720060 is an apocalyptic number.

26405720060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26405720060 is an abundant number, since it is smaller than the sum of its proper divisors (32302367140).

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

26405720060 is a wasteful number, since it uses less digits than its factorization.

26405720060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401870 (or 401868 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The spelling of 26405720060 in words is "twenty-six billion, four hundred five million, seven hundred twenty thousand, sixty".