749042181056 has 112 divisors (see below), whose sum is σ = 1701186701760. Its totient is φ = 324164567040.

The previous prime is 749042181011. The next prime is 749042181067. The reversal of 749042181056 is 650181240947.

It is a happy number.

It is a super-2 number, since 2×749042181056² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 749042181056.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3706301 + ... + 3903171.

It is an arithmetic number, because the mean of its divisors is an integer number (15189166980).

Almost surely, 2^749042181056 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 749042181056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (850593350880).

749042181056 is an abundant number, since it is smaller than the sum of its proper divisors (952144520704).

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

749042181056 is a wasteful number, since it uses less digits than its factorization.

749042181056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197182 (or 197172 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 47.

The spelling of 749042181056 in words is "seven hundred forty-nine billion, forty-two million, one hundred eighty-one thousand, fifty-six".