40720415507 has 2 divisors, whose sum is σ = 40720415508. Its totient is φ = 40720415506.

The previous prime is 40720415479. The next prime is 40720415513. The reversal of 40720415507 is 70551402704.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40720415507 - 2¹² = 40720411411 is a prime.

It is not a weakly prime, because it can be changed into another prime (40720415807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20360207753 + 20360207754.

It is an arithmetic number, because the mean of its divisors is an integer number (20360207754).

Almost surely, 2^40720415507 is an apocalyptic number.

40720415507 is a deficient number, since it is larger than the sum of its proper divisors (1).

40720415507 is an equidigital number, since it uses as much as digits as its factorization.

40720415507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39200, while the sum is 35.

The spelling of 40720415507 in words is "forty billion, seven hundred twenty million, four hundred fifteen thousand, five hundred seven".