40700007391 has 2 divisors, whose sum is σ = 40700007392. Its totient is φ = 40700007390.

The previous prime is 40700007389. The next prime is 40700007427. The reversal of 40700007391 is 19370000704.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40700007391 - 2¹ = 40700007389 is a prime.

Together with 40700007389, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40700007301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20350003695 + 20350003696.

It is an arithmetic number, because the mean of its divisors is an integer number (20350003696).

Almost surely, 2^40700007391 is an apocalyptic number.

40700007391 is a deficient number, since it is larger than the sum of its proper divisors (1).

40700007391 is an equidigital number, since it uses as much as digits as its factorization.

40700007391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5292, while the sum is 31.

The spelling of 40700007391 in words is "forty billion, seven hundred million, seven thousand, three hundred ninety-one".