21107442346 has 8 divisors (see below), whose sum is σ = 32334805440. Its totient is φ = 10329173868.

The previous prime is 21107442329. The next prime is 21107442353. The reversal of 21107442346 is 64324470112.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112273536 + ... + 112273723.

It is an arithmetic number, because the mean of its divisors is an integer number (4041850680).

Almost surely, 2^21107442346 is an apocalyptic number.

21107442346 is a deficient number, since it is larger than the sum of its proper divisors (11227363094).

21107442346 is a wasteful number, since it uses less digits than its factorization.

21107442346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224547308.

The product of its (nonzero) digits is 32256, while the sum is 34.

The spelling of 21107442346 in words is "twenty-one billion, one hundred seven million, four hundred forty-two thousand, three hundred forty-six".