40889969690723 has 2 divisors, whose sum is σ = 40889969690724. Its totient is φ = 40889969690722.

The previous prime is 40889969690707. The next prime is 40889969690753. The reversal of 40889969690723 is 32709696998804.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40889969690723 - 2⁴ = 40889969690707 is a prime.

It is not a weakly prime, because it can be changed into another prime (40889969690753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20444984845361 + 20444984845362.

It is an arithmetic number, because the mean of its divisors is an integer number (20444984845362).

Almost surely, 2^{40889969690723} is an apocalyptic number.

40889969690723 is a deficient number, since it is larger than the sum of its proper divisors (1).

40889969690723 is an equidigital number, since it uses as much as digits as its factorization.

40889969690723 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2539579392, while the sum is 80.

The spelling of 40889969690723 in words is "forty trillion, eight hundred eighty-nine billion, nine hundred sixty-nine million, six hundred ninety thousand, seven hundred twenty-three".