21701773316875 has 40 divisors (see below), whose sum is σ = 28671583406400. Its totient is φ = 16375201092000.

The previous prime is 21701773316849. The next prime is 21701773316933. The reversal of 21701773316875 is 57861337710712.

It is not a de Polignac number, because 21701773316875 - 2⁵ = 21701773316843 is a prime.

It is a hoax number, since the sum of its digits (58) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1329745 + ... + 6720994.

It is an arithmetic number, because the mean of its divisors is an integer number (716789585160).

Almost surely, 2^{21701773316875} is an apocalyptic number.

21701773316875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

21701773316875 is a deficient number, since it is larger than the sum of its proper divisors (6969810089525).

21701773316875 is an equidigital number, since it uses as much as digits as its factorization.

21701773316875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8051005 (or 8050990 counting only the distinct ones).

The product of its (nonzero) digits is 10372320, while the sum is 58.

The spelling of 21701773316875 in words is "twenty-one trillion, seven hundred one billion, seven hundred seventy-three million, three hundred sixteen thousand, eight hundred seventy-five".