40307256007 has 2 divisors, whose sum is σ = 40307256008. Its totient is φ = 40307256006.

The previous prime is 40307255957. The next prime is 40307256019. The reversal of 40307256007 is 70065270304.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40307256007 - 2³¹ = 38159772359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40307256607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20153628003 + 20153628004.

It is an arithmetic number, because the mean of its divisors is an integer number (20153628004).

Almost surely, 2^40307256007 is an apocalyptic number.

40307256007 is a deficient number, since it is larger than the sum of its proper divisors (1).

40307256007 is an equidigital number, since it uses as much as digits as its factorization.

40307256007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35280, while the sum is 34.

The spelling of 40307256007 in words is "forty billion, three hundred seven million, two hundred fifty-six thousand, seven".