21457483407306 has 32 divisors (see below), whose sum is σ = 47683603065600. Its totient is φ = 7152448478400.

The previous prime is 21457483407299. The next prime is 21457483407359. The reversal of 21457483407306 is 60370438475412.

21457483407306 is a `hidden beast` number, since 2 + 1 + 4 + 57 + 483 + 40 + 73 + 0 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 7788610 + ... + 10177298.

It is an arithmetic number, because the mean of its divisors is an integer number (1490112595800).

Almost surely, 2^{21457483407306} is an apocalyptic number.

21457483407306 is an abundant number, since it is smaller than the sum of its proper divisors (26226119658294).

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

21457483407306 is a wasteful number, since it uses less digits than its factorization.

21457483407306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2555051 (or 2555045 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 54.

The spelling of 21457483407306 in words is "twenty-one trillion, four hundred fifty-seven billion, four hundred eighty-three million, four hundred seven thousand, three hundred six".