20407353874 has 8 divisors (see below), whose sum is σ = 30612402288. Its totient is φ = 10203219780.

The previous prime is 20407353871. The next prime is 20407353907. The reversal of 20407353874 is 47835370402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20407353874.

It is not an unprimeable number, because it can be changed into a prime (20407353871) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 169752 + ... + 263875.

It is an arithmetic number, because the mean of its divisors is an integer number (3826550286).

Almost surely, 2^20407353874 is an apocalyptic number.

20407353874 is a deficient number, since it is larger than the sum of its proper divisors (10205048414).

20407353874 is a wasteful number, since it uses less digits than its factorization.

20407353874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457160.

The product of its (nonzero) digits is 564480, while the sum is 43.

The spelling of 20407353874 in words is "twenty billion, four hundred seven million, three hundred fifty-three thousand, eight hundred seventy-four".