20202862478 has 8 divisors (see below), whose sum is σ = 30456577200. Its totient is φ = 10050670080.

The previous prime is 20202862417. The next prime is 20202862529. The reversal of 20202862478 is 87426820202.

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

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 25380083 + ... + 25380878.

It is an arithmetic number, because the mean of its divisors is an integer number (3807072150).

Almost surely, 2^20202862478 is an apocalyptic number.

20202862478 is a deficient number, since it is larger than the sum of its proper divisors (10253714722).

20202862478 is a wasteful number, since it uses less digits than its factorization.

20202862478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50761162.

The product of its (nonzero) digits is 172032, while the sum is 41.

The spelling of 20202862478 in words is "twenty billion, two hundred two million, eight hundred sixty-two thousand, four hundred seventy-eight".