40207240747 has 2 divisors, whose sum is σ = 40207240748. Its totient is φ = 40207240746.

The previous prime is 40207240739. The next prime is 40207240781. The reversal of 40207240747 is 74704270204.

It is a happy number.

40207240747 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40207240747 - 2³ = 40207240739 is a prime.

It is not a weakly prime, because it can be changed into another prime (40207246747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20103620373 + 20103620374.

It is an arithmetic number, because the mean of its divisors is an integer number (20103620374).

Almost surely, 2^40207240747 is an apocalyptic number.

40207240747 is a deficient number, since it is larger than the sum of its proper divisors (1).

40207240747 is an equidigital number, since it uses as much as digits as its factorization.

40207240747 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 87808, while the sum is 37.

The spelling of 40207240747 in words is "forty billion, two hundred seven million, two hundred forty thousand, seven hundred forty-seven".