40705247143 has 8 divisors (see below), whose sum is σ = 45243568656. Its totient is φ = 36306566400.

The previous prime is 40705247053. The next prime is 40705247153. The reversal of 40705247143 is 34174250704.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40705247143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40705247153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34909578 + ... + 34910743.

It is an arithmetic number, because the mean of its divisors is an integer number (5655446082).

Almost surely, 2^40705247143 is an apocalyptic number.

40705247143 is a deficient number, since it is larger than the sum of its proper divisors (4538321513).

40705247143 is a wasteful number, since it uses less digits than its factorization.

40705247143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69820385.

The product of its (nonzero) digits is 94080, while the sum is 37.

Adding to 40705247143 its reverse (34174250704), we get a palindrome (74879497847).

The spelling of 40705247143 in words is "forty billion, seven hundred five million, two hundred forty-seven thousand, one hundred forty-three".