40232385779 has 2 divisors, whose sum is σ = 40232385780. Its totient is φ = 40232385778.

The previous prime is 40232385757. The next prime is 40232385811. The reversal of 40232385779 is 97758323204.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40232385779 - 2¹⁶ = 40232320243 is a prime.

It is not a weakly prime, because it can be changed into another prime (40232385709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20116192889 + 20116192890.

It is an arithmetic number, because the mean of its divisors is an integer number (20116192890).

Almost surely, 2^40232385779 is an apocalyptic number.

40232385779 is a deficient number, since it is larger than the sum of its proper divisors (1).

40232385779 is an equidigital number, since it uses as much as digits as its factorization.

40232385779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2540160, while the sum is 50.

The spelling of 40232385779 in words is "forty billion, two hundred thirty-two million, three hundred eighty-five thousand, seven hundred seventy-nine".