20425051234 has 32 divisors (see below), whose sum is σ = 37240390656. Its totient is φ = 8201710080.

The previous prime is 20425051223. The next prime is 20425051253. The reversal of 20425051234 is 43215052402.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139347 + ... + 245494.

It is an arithmetic number, because the mean of its divisors is an integer number (1163762208).

Almost surely, 2^20425051234 is an apocalyptic number.

20425051234 is a deficient number, since it is larger than the sum of its proper divisors (16815339422).

20425051234 is a wasteful number, since it uses less digits than its factorization.

20425051234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385090.

The product of its (nonzero) digits is 9600, while the sum is 28.

The spelling of 20425051234 in words is "twenty billion, four hundred twenty-five million, fifty-one thousand, two hundred thirty-four".