21507006740010 has 64 divisors (see below), whose sum is σ = 59621563085184. Its totient is φ = 4907124531200.

The previous prime is 21507006739991. The next prime is 21507006740077. The reversal of 21507006740010 is 1004760070512.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1916839911 + ... + 1916851130.

It is an arithmetic number, because the mean of its divisors is an integer number (931586923206).

Almost surely, 2^{21507006740010} is an apocalyptic number.

21507006740010 is an abundant number, since it is smaller than the sum of its proper divisors (38114556345174).

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

21507006740010 is a wasteful number, since it uses less digits than its factorization.

21507006740010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3833691079.

The product of its (nonzero) digits is 11760, while the sum is 33.

The spelling of 21507006740010 in words is "twenty-one trillion, five hundred seven billion, six million, seven hundred forty thousand, ten".