20863399336802 has 64 divisors (see below), whose sum is σ = 36142480281600. Its totient is φ = 8942473673280.

The previous prime is 20863399336799. The next prime is 20863399336807.

20863399336802 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (20863399336807) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 303358223 + ... + 303426989.

It is an arithmetic number, because the mean of its divisors is an integer number (564726254400).

Almost surely, 2^{20863399336802} is an apocalyptic number.

20863399336802 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20863399336802 is a deficient number, since it is larger than the sum of its proper divisors (15279080944798).

20863399336802 is a wasteful number, since it uses less digits than its factorization.

20863399336802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79911.

The product of its (nonzero) digits is 60466176, while the sum is 62.

The spelling of 20863399336802 in words is "twenty trillion, eight hundred sixty-three billion, three hundred ninety-nine million, three hundred thirty-six thousand, eight hundred two".