20234426173856 has 96 divisors (see below), whose sum is σ = 44830912613760. Its totient is φ = 8933338423296.

The previous prime is 20234426173847. The next prime is 20234426173861. The reversal of 20234426173856 is 65837162443202.

It is a junction number, because it is equal to n+sod(n) for n = 20234426173798 and 20234426173807.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8438621 + ... + 10567836.

It is an arithmetic number, because the mean of its divisors is an integer number (466988673060).

Almost surely, 2^{20234426173856} is an apocalyptic number.

It is an amenable number.

20234426173856 is an abundant number, since it is smaller than the sum of its proper divisors (24596486439904).

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

20234426173856 is a wasteful number, since it uses less digits than its factorization.

20234426173856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19006606 (or 19006598 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 53.

The spelling of 20234426173856 in words is "twenty trillion, two hundred thirty-four billion, four hundred twenty-six million, one hundred seventy-three thousand, eight hundred fifty-six".