40243346463 has 4 divisors (see below), whose sum is σ = 53657795288. Its totient is φ = 26828897640.

The previous prime is 40243346449. The next prime is 40243346501. The reversal of 40243346463 is 36464334204.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 40243346463 - 2⁵ = 40243346431 is a prime.

It is a super-2 number, since 2×40243346463² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40243346863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6707224408 + ... + 6707224413.

It is an arithmetic number, because the mean of its divisors is an integer number (13414448822).

Almost surely, 2^40243346463 is an apocalyptic number.

40243346463 is a deficient number, since it is larger than the sum of its proper divisors (13414448825).

40243346463 is a wasteful number, since it uses less digits than its factorization.

40243346463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13414448824.

The product of its (nonzero) digits is 497664, while the sum is 39.

The spelling of 40243346463 in words is "forty billion, two hundred forty-three million, three hundred forty-six thousand, four hundred sixty-three".