749354115081 has 128 divisors (see below), whose sum is σ = 1205534195712. Its totient is φ = 408076704000.

The previous prime is 749354115071. The next prime is 749354115089. The reversal of 749354115081 is 180511453947.

It is not a de Polignac number, because 749354115081 - 2⁵ = 749354115049 is a prime.

It is a super-2 number, since 2×749354115081² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 749354115081.

It is not an unprimeable number, because it can be changed into a prime (749354115089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1187565636 + ... + 1187566266.

It is an arithmetic number, because the mean of its divisors is an integer number (9418235904).

Almost surely, 2^749354115081 is an apocalyptic number.

749354115081 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

It is an amenable number.

749354115081 is a deficient number, since it is larger than the sum of its proper divisors (456180080631).

749354115081 is a wasteful number, since it uses less digits than its factorization.

749354115081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1163.

The product of its (nonzero) digits is 604800, while the sum is 48.

The spelling of 749354115081 in words is "seven hundred forty-nine billion, three hundred fifty-four million, one hundred fifteen thousand, eighty-one".