40263538466143 has 4 divisors (see below), whose sum is σ = 40264373043760. Its totient is φ = 40262703888528.

The previous prime is 40263538466131. The next prime is 40263538466161. The reversal of 40263538466143 is 34166483536204.

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-40263538466143 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 (40263538466243) 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, 417216438 + ... + 417312931.

It is an arithmetic number, because the mean of its divisors is an integer number (10066093260940).

Almost surely, 2^{40263538466143} is an apocalyptic number.

40263538466143 is a deficient number, since it is larger than the sum of its proper divisors (834577617).

40263538466143 is an equidigital number, since it uses as much as digits as its factorization.

40263538466143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834577616.

The product of its (nonzero) digits is 29859840, while the sum is 55.

The spelling of 40263538466143 in words is "forty trillion, two hundred sixty-three billion, five hundred thirty-eight million, four hundred sixty-six thousand, one hundred forty-three".