20410140851 has 2 divisors, whose sum is σ = 20410140852. Its totient is φ = 20410140850.

The previous prime is 20410140787. The next prime is 20410140893. The reversal of 20410140851 is 15804101402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20410140851 - 2⁶ = 20410140787 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20410140851.

It is not a weakly prime, because it can be changed into another prime (20410140151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10205070425 + 10205070426.

It is an arithmetic number, because the mean of its divisors is an integer number (10205070426).

Almost surely, 2^20410140851 is an apocalyptic number.

20410140851 is a deficient number, since it is larger than the sum of its proper divisors (1).

20410140851 is an equidigital number, since it uses as much as digits as its factorization.

20410140851 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1280, while the sum is 26.

The spelling of 20410140851 in words is "twenty billion, four hundred ten million, one hundred forty thousand, eight hundred fifty-one".