40463473723 has 4 divisors (see below), whose sum is σ = 40556923288. Its totient is φ = 40370024160.

The previous prime is 40463473717. The next prime is 40463473733. The reversal of 40463473723 is 32737436404.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40463473723 is a prime.

It is a super-2 number, since 2×40463473723² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40463473723.

It is not an unprimeable number, because it can be changed into a prime (40463473703) 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, 46724133 + ... + 46724998.

It is an arithmetic number, because the mean of its divisors is an integer number (10139230822).

Almost surely, 2^40463473723 is an apocalyptic number.

40463473723 is a deficient number, since it is larger than the sum of its proper divisors (93449565).

40463473723 is an equidigital number, since it uses as much as digits as its factorization.

40463473723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93449564.

The product of its (nonzero) digits is 1016064, while the sum is 43.

The spelling of 40463473723 in words is "forty billion, four hundred sixty-three million, four hundred seventy-three thousand, seven hundred twenty-three".