21407636101 has 8 divisors (see below), whose sum is σ = 22444277184. Its totient is φ = 20379817920.

The previous prime is 21407636021. The next prime is 21407636111. The reversal of 21407636101 is 10163670412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21407636101 - 2⁷ = 21407635973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21407636111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2200756 + ... + 2210461.

It is an arithmetic number, because the mean of its divisors is an integer number (2805534648).

Almost surely, 2^21407636101 is an apocalyptic number.

It is an amenable number.

21407636101 is a deficient number, since it is larger than the sum of its proper divisors (1036641083).

21407636101 is a wasteful number, since it uses less digits than its factorization.

21407636101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4411451.

The product of its (nonzero) digits is 6048, while the sum is 31.

The spelling of 21407636101 in words is "twenty-one billion, four hundred seven million, six hundred thirty-six thousand, one hundred one".