40311344639 has 8 divisors (see below), whose sum is σ = 42687926640. Its totient is φ = 37935354496.

The previous prime is 40311344621. The next prime is 40311344659. The reversal of 40311344639 is 93644311304.

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-40311344639 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 (40311344659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3704 + ... + 283965.

It is an arithmetic number, because the mean of its divisors is an integer number (5335990830).

Almost surely, 2^40311344639 is an apocalyptic number.

40311344639 is a deficient number, since it is larger than the sum of its proper divisors (2376582001).

40311344639 is a wasteful number, since it uses less digits than its factorization.

40311344639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295929.

The product of its (nonzero) digits is 93312, while the sum is 38.

The spelling of 40311344639 in words is "forty billion, three hundred eleven million, three hundred forty-four thousand, six hundred thirty-nine".