43997079967 has 2 divisors, whose sum is σ = 43997079968. Its totient is φ = 43997079966.

The previous prime is 43997079853. The next prime is 43997080013. The reversal of 43997079967 is 76997079934.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43997079967 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43997079896 and 43997079905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43997079167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21998539983 + 21998539984.

It is an arithmetic number, because the mean of its divisors is an integer number (21998539984).

Almost surely, 2^43997079967 is an apocalyptic number.

43997079967 is a deficient number, since it is larger than the sum of its proper divisors (1).

43997079967 is an equidigital number, since it uses as much as digits as its factorization.

43997079967 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162030456, while the sum is 70.

The spelling of 43997079967 in words is "forty-three billion, nine hundred ninety-seven million, seventy-nine thousand, nine hundred sixty-seven".