40264428779 has 2 divisors, whose sum is σ = 40264428780. Its totient is φ = 40264428778.

The previous prime is 40264428739. The next prime is 40264428829. The reversal of 40264428779 is 97782446204.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40264428779 is a prime.

It is a super-3 number, since 3×40264428779³ (a number of 33 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40264428779.

It is not a weakly prime, because it can be changed into another prime (40264428739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20132214389 + 20132214390.

It is an arithmetic number, because the mean of its divisors is an integer number (20132214390).

Almost surely, 2^40264428779 is an apocalyptic number.

40264428779 is a deficient number, since it is larger than the sum of its proper divisors (1).

40264428779 is an equidigital number, since it uses as much as digits as its factorization.

40264428779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5419008, while the sum is 53.

The spelling of 40264428779 in words is "forty billion, two hundred sixty-four million, four hundred twenty-eight thousand, seven hundred seventy-nine".