20346907458 has 16 divisors (see below), whose sum is σ = 40763147040. Its totient is φ = 6770747136.

The previous prime is 20346907403. The next prime is 20346907507. The reversal of 20346907458 is 85470964302.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2885023 + ... + 2892066.

It is an arithmetic number, because the mean of its divisors is an integer number (2547696690).

Almost surely, 2^20346907458 is an apocalyptic number.

20346907458 is an abundant number, since it is smaller than the sum of its proper divisors (20416239582).

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

20346907458 is a wasteful number, since it uses less digits than its factorization.

20346907458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5777681.

The product of its (nonzero) digits is 1451520, while the sum is 48.

The spelling of 20346907458 in words is "twenty billion, three hundred forty-six million, nine hundred seven thousand, four hundred fifty-eight".