749254169664 has 1792 divisors, whose sum is σ = 3106794700800. Its totient is φ = 170798284800.

The previous prime is 749254169647. The next prime is 749254169717. The reversal of 749254169664 is 466961452947.

It is a happy number.

749254169664 is a `hidden beast` number, since 7 + 492 + 54 + 1 + 6 + 96 + 6 + 4 = 666.

It is a super-2 number, since 2×749254169664² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 4772319474 + ... + 4772319630.

It is an arithmetic number, because the mean of its divisors is an integer number (1733702400).

Almost surely, 2^749254169664 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 749254169664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1553397350400).

749254169664 is an abundant number, since it is smaller than the sum of its proper divisors (2357540531136).

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

749254169664 is a wasteful number, since it uses less digits than its factorization.

749254169664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329 (or 313 counting only the distinct ones).

The product of its digits is 78382080, while the sum is 63.

The spelling of 749254169664 in words is "seven hundred forty-nine billion, two hundred fifty-four million, one hundred sixty-nine thousand, six hundred sixty-four".