40001709827 has 2 divisors, whose sum is σ = 40001709828. Its totient is φ = 40001709826.

The previous prime is 40001709791. The next prime is 40001709857. The reversal of 40001709827 is 72890710004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40001709827 - 2⁶ = 40001709763 is a prime.

It is not a weakly prime, because it can be changed into another prime (40001709857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20000854913 + 20000854914.

It is an arithmetic number, because the mean of its divisors is an integer number (20000854914).

Almost surely, 2^40001709827 is an apocalyptic number.

40001709827 is a deficient number, since it is larger than the sum of its proper divisors (1).

40001709827 is an equidigital number, since it uses as much as digits as its factorization.

40001709827 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 38.

The spelling of 40001709827 in words is "forty billion, one million, seven hundred nine thousand, eight hundred twenty-seven".