20101875943693 has 8 divisors (see below), whose sum is σ = 20107317307896. Its totient is φ = 20096434867200.

The previous prime is 20101875943649. The next prime is 20101875943763. The reversal of 20101875943693 is 39634957810102.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 15917650234249 + 4184225709444 = 3989693^2 + 2045538^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 20101875943693 - 2¹⁷ = 20101875812621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20101875949693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 271753233 + ... + 271827193.

It is an arithmetic number, because the mean of its divisors is an integer number (2513414663487).

It is a 1-persistent number, because it is pandigital, but 2⋅20101875943693 = 40203751887386 is not.

Almost surely, 2^{20101875943693} is an apocalyptic number.

It is an amenable number.

20101875943693 is a deficient number, since it is larger than the sum of its proper divisors (5441364203).

20101875943693 is an equidigital number, since it uses as much as digits as its factorization.

20101875943693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143855.

The product of its (nonzero) digits is 9797760, while the sum is 58.

The spelling of 20101875943693 in words is "twenty trillion, one hundred one billion, eight hundred seventy-five million, nine hundred forty-three thousand, six hundred ninety-three".