42533778864 has 160 divisors (see below), whose sum is σ = 120171237120. Its totient is φ = 12910657536.

The previous prime is 42533778857. The next prime is 42533778871. The reversal of 42533778864 is 46887733524.

It is an interprime number because it is at equal distance from previous prime (42533778857) and next prime (42533778871).

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, 3748752 + ... + 3760080.

It is an arithmetic number, because the mean of its divisors is an integer number (751070232).

Almost surely, 2^42533778864 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 42533778864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60085618560).

42533778864 is an abundant number, since it is smaller than the sum of its proper divisors (77637458256).

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

42533778864 is a wasteful number, since it uses less digits than its factorization.

42533778864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11507 (or 11501 counting only the distinct ones).

The product of its digits is 27095040, while the sum is 57.

The spelling of 42533778864 in words is "forty-two billion, five hundred thirty-three million, seven hundred seventy-eight thousand, eight hundred sixty-four".