40024021221479 has 2 divisors, whose sum is σ = 40024021221480. Its totient is φ = 40024021221478.

The previous prime is 40024021221277. The next prime is 40024021221493. The reversal of 40024021221479 is 97412212042004.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40024021221479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40024021223479) 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, 20012010610739 + 20012010610740.

It is an arithmetic number, because the mean of its divisors is an integer number (20012010610740).

Almost surely, 2^{40024021221479} is an apocalyptic number.

40024021221479 is a deficient number, since it is larger than the sum of its proper divisors (1).

40024021221479 is an equidigital number, since it uses as much as digits as its factorization.

40024021221479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 38.

The spelling of 40024021221479 in words is "forty trillion, twenty-four billion, twenty-one million, two hundred twenty-one thousand, four hundred seventy-nine".