40070669879 has 2 divisors, whose sum is σ = 40070669880. Its totient is φ = 40070669878.

The previous prime is 40070669867. The next prime is 40070669911. The reversal of 40070669879 is 97896607004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40070669879 - 2²⁴ = 40053892663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40070669809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20035334939 + 20035334940.

It is an arithmetic number, because the mean of its divisors is an integer number (20035334940).

Almost surely, 2^40070669879 is an apocalyptic number.

40070669879 is a deficient number, since it is larger than the sum of its proper divisors (1).

40070669879 is an equidigital number, since it uses as much as digits as its factorization.

40070669879 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4572288, while the sum is 56.

The spelling of 40070669879 in words is "forty billion, seventy million, six hundred sixty-nine thousand, eight hundred seventy-nine".