20440951835 has 16 divisors (see below), whose sum is σ = 24625472256. Its totient is φ = 16288615008.

The previous prime is 20440951823. The next prime is 20440951889. The reversal of 20440951835 is 53815904402.

It is a cyclic number.

It is not a de Polignac number, because 20440951835 - 2²² = 20436757531 is a prime.

It is a super-3 number, since 3×20440951835³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20440951792 and 20440951801.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2923754 + ... + 2930736.

It is an arithmetic number, because the mean of its divisors is an integer number (1539092016).

Almost surely, 2^20440951835 is an apocalyptic number.

20440951835 is a deficient number, since it is larger than the sum of its proper divisors (4184520421).

20440951835 is a wasteful number, since it uses less digits than its factorization.

20440951835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9202.

The product of its (nonzero) digits is 172800, while the sum is 41.

The spelling of 20440951835 in words is "twenty billion, four hundred forty million, nine hundred fifty-one thousand, eight hundred thirty-five".