40433621407 has 2 divisors, whose sum is σ = 40433621408. Its totient is φ = 40433621406.

The previous prime is 40433621357. The next prime is 40433621453. The reversal of 40433621407 is 70412633404.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40433621407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40433651407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20216810703 + 20216810704.

It is an arithmetic number, because the mean of its divisors is an integer number (20216810704).

Almost surely, 2^40433621407 is an apocalyptic number.

40433621407 is a deficient number, since it is larger than the sum of its proper divisors (1).

40433621407 is an equidigital number, since it uses as much as digits as its factorization.

40433621407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 34.

The spelling of 40433621407 in words is "forty billion, four hundred thirty-three million, six hundred twenty-one thousand, four hundred seven".