40447893252697 has 16 divisors (see below), whose sum is σ = 48370992366592. Its totient is φ = 33091641711360.

The previous prime is 40447893252691. The next prime is 40447893252709. The reversal of 40447893252697 is 79625239874404.

It is a cyclic number.

It is not a de Polignac number, because 40447893252697 - 2¹¹ = 40447893250649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40447893252691) 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, 1276667868 + ... + 1276699549.

It is an arithmetic number, because the mean of its divisors is an integer number (3023187022912).

Almost surely, 2^{40447893252697} is an apocalyptic number.

It is an amenable number.

40447893252697 is a deficient number, since it is larger than the sum of its proper divisors (7923099113895).

40447893252697 is a wasteful number, since it uses less digits than its factorization.

40447893252697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2553367528.

The product of its (nonzero) digits is 731566080, while the sum is 70.

The spelling of 40447893252697 in words is "forty trillion, four hundred forty-seven billion, eight hundred ninety-three million, two hundred fifty-two thousand, six hundred ninety-seven".