40001317764 has 96 divisors (see below), whose sum is σ = 99545314176. Its totient is φ = 12458557440.

The previous prime is 40001317723. The next prime is 40001317787. The reversal of 40001317764 is 46771310004.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17597332 + ... + 17599604.

It is an arithmetic number, because the mean of its divisors is an integer number (1036930356).

Almost surely, 2^40001317764 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40001317764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49772657088).

40001317764 is an abundant number, since it is smaller than the sum of its proper divisors (59543996412).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40001317764 is a wasteful number, since it uses less digits than its factorization.

40001317764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2885 (or 2883 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 33.

Adding to 40001317764 its reverse (46771310004), we get a palindrome (86772627768).

The spelling of 40001317764 in words is "forty billion, one million, three hundred seventeen thousand, seven hundred sixty-four".