21464101670 has 48 divisors (see below), whose sum is σ = 43048908000. Its totient is φ = 7698176640.

The previous prime is 21464101669. The next prime is 21464101717. The reversal of 21464101670 is 7610146412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33170 + ... + 209829.

It is an arithmetic number, because the mean of its divisors is an integer number (896852250).

Almost surely, 2^21464101670 is an apocalyptic number.

21464101670 is an abundant number, since it is smaller than the sum of its proper divisors (21584806330).

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

21464101670 is a wasteful number, since it uses less digits than its factorization.

21464101670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243101 (or 243090 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The spelling of 21464101670 in words is "twenty-one billion, four hundred sixty-four million, one hundred one thousand, six hundred seventy".