40573609368 has 96 divisors (see below), whose sum is σ = 109117132800. Its totient is φ = 12567679488.

The previous prime is 40573609367. The next prime is 40573609393. The reversal of 40573609368 is 86390637504.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 40573609368.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40573609367) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 510921 + ... + 584967.

It is an arithmetic number, because the mean of its divisors is an integer number (1136636800).

Almost surely, 2^40573609368 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 40573609368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54558566400).

40573609368 is an abundant number, since it is smaller than the sum of its proper divisors (68543523432).

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

40573609368 is a wasteful number, since it uses less digits than its factorization.

40573609368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74169 (or 74148 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 51.

The spelling of 40573609368 in words is "forty billion, five hundred seventy-three million, six hundred nine thousand, three hundred sixty-eight".