21346260036 has 48 divisors (see below), whose sum is σ = 51034175808. Its totient is φ = 6940684800.

The previous prime is 21346260007. The next prime is 21346260037. The reversal of 21346260036 is 63006264312.

It is a junction number, because it is equal to n+sod(n) for n = 21346259979 and 21346260006.

It is not an unprimeable number, because it can be changed into a prime (21346260037) 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, 365496 + ... + 419856.

It is an arithmetic number, because the mean of its divisors is an integer number (1063211996).

Almost surely, 2^21346260036 is an apocalyptic number.

It is an amenable number.

21346260036 is an abundant number, since it is smaller than the sum of its proper divisors (29687915772).

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

21346260036 is a wasteful number, since it uses less digits than its factorization.

21346260036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55172 (or 55170 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 33.

The spelling of 21346260036 in words is "twenty-one billion, three hundred forty-six million, two hundred sixty thousand, thirty-six".