40647056567 has 16 divisors (see below), whose sum is σ = 45777063360. Its totient is φ = 35810387712.

The previous prime is 40647056519. The next prime is 40647056591. The reversal of 40647056567 is 76565074604.

It is a cyclic number.

It is not a de Polignac number, because 40647056567 - 2⁶ = 40647056503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40647056267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12092 + ... + 285377.

It is an arithmetic number, because the mean of its divisors is an integer number (2861066460).

Almost surely, 2^40647056567 is an apocalyptic number.

40647056567 is a deficient number, since it is larger than the sum of its proper divisors (5130006793).

40647056567 is a wasteful number, since it uses less digits than its factorization.

40647056567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297962.

The product of its (nonzero) digits is 4233600, while the sum is 50.

The spelling of 40647056567 in words is "forty billion, six hundred forty-seven million, fifty-six thousand, five hundred sixty-seven".