20842616734 has 8 divisors (see below), whose sum is σ = 31274457048. Its totient is φ = 10417797720.

The previous prime is 20842616699. The next prime is 20842616759. The reversal of 20842616734 is 43761624802.

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

It is a congruent number.

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, 1747897 + ... + 1759780.

It is an arithmetic number, because the mean of its divisors is an integer number (3909307131).

Almost surely, 2^20842616734 is an apocalyptic number.

20842616734 is a deficient number, since it is larger than the sum of its proper divisors (10431840314).

20842616734 is a wasteful number, since it uses less digits than its factorization.

20842616734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3510650.

The product of its (nonzero) digits is 387072, while the sum is 43.

The spelling of 20842616734 in words is "twenty billion, eight hundred forty-two million, six hundred sixteen thousand, seven hundred thirty-four".