40022824997 has 2 divisors, whose sum is σ = 40022824998. Its totient is φ = 40022824996.

The previous prime is 40022824993. The next prime is 40022825023. The reversal of 40022824997 is 79942822004.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24351290401 + 15671534596 = 156049^2 + 125186^2 .

It is a cyclic number.

It is not a de Polignac number, because 40022824997 - 2² = 40022824993 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40022824993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20011412498 + 20011412499.

It is an arithmetic number, because the mean of its divisors is an integer number (20011412499).

Almost surely, 2^40022824997 is an apocalyptic number.

It is an amenable number.

40022824997 is a deficient number, since it is larger than the sum of its proper divisors (1).

40022824997 is an equidigital number, since it uses as much as digits as its factorization.

40022824997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 580608, while the sum is 47.

The spelling of 40022824997 in words is "forty billion, twenty-two million, eight hundred twenty-four thousand, nine hundred ninety-seven".