749144834823 has 64 divisors (see below), whose sum is σ = 1317531156480. Its totient is φ = 366811804800.

The previous prime is 749144834821. The next prime is 749144834833. The reversal of 749144834823 is 328438441947.

It is not a de Polignac number, because 749144834823 - 2¹ = 749144834821 is a prime.

It is a super-2 number, since 2×749144834823² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749144834821) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 431418 + ... + 1297848.

It is an arithmetic number, because the mean of its divisors is an integer number (20586424320).

Almost surely, 2^749144834823 is an apocalyptic number.

749144834823 is a deficient number, since it is larger than the sum of its proper divisors (568386321657).

749144834823 is a wasteful number, since it uses less digits than its factorization.

749144834823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866668.

The product of its digits is 18579456, while the sum is 57.

The spelling of 749144834823 in words is "seven hundred forty-nine billion, one hundred forty-four million, eight hundred thirty-four thousand, eight hundred twenty-three".