20726451282 has 16 divisors (see below), whose sum is σ = 42463949472. Its totient is φ = 6740309280.

The previous prime is 20726451257. The next prime is 20726451287. The reversal of 20726451282 is 28215462702.

It is a self number, because there is not a number n which added to its sum of digits gives 20726451282.

It is not an unprimeable number, because it can be changed into a prime (20726451287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42126688 + ... + 42127179.

It is an arithmetic number, because the mean of its divisors is an integer number (2653996842).

Almost surely, 2^20726451282 is an apocalyptic number.

20726451282 is an abundant number, since it is smaller than the sum of its proper divisors (21737498190).

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

20726451282 is a wasteful number, since it uses less digits than its factorization.

20726451282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84253913.

The product of its (nonzero) digits is 107520, while the sum is 39.

The spelling of 20726451282 in words is "twenty billion, seven hundred twenty-six million, four hundred fifty-one thousand, two hundred eighty-two".