20347054926 has 64 divisors (see below), whose sum is σ = 46422097920. Its totient is φ = 5885174240.

The previous prime is 20347054891. The next prime is 20347054939. The reversal of 20347054926 is 62945074302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 713131 + ... + 741113.

It is an arithmetic number, because the mean of its divisors is an integer number (725345280).

Almost surely, 2^20347054926 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20347054926, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23211048960).

20347054926 is an abundant number, since it is smaller than the sum of its proper divisors (26075042994).

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

20347054926 is a wasteful number, since it uses less digits than its factorization.

20347054926 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28501.

The product of its (nonzero) digits is 362880, while the sum is 42.

The spelling of 20347054926 in words is "twenty billion, three hundred forty-seven million, fifty-four thousand, nine hundred twenty-six".