26346346520 has 64 divisors (see below), whose sum is σ = 64885847040. Its totient is φ = 9568396800.

The previous prime is 26346346501. The next prime is 26346346529. The reversal of 26346346520 is 2564364362.

It is a super-2 number, since 2×26346346520² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26346346529) 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, 383576 + ... + 447015.

It is an arithmetic number, because the mean of its divisors is an integer number (1013841360).

Almost surely, 2^26346346520 is an apocalyptic number.

26346346520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26346346520 is an abundant number, since it is smaller than the sum of its proper divisors (38539500520).

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

26346346520 is a wasteful number, since it uses less digits than its factorization.

26346346520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830676 (or 830672 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 41.

The spelling of 26346346520 in words is "twenty-six billion, three hundred forty-six million, three hundred forty-six thousand, five hundred twenty".