751649013 has 12 divisors (see below), whose sum is σ = 1087313760. Its totient is φ = 500361576.

The previous prime is 751649011. The next prime is 751649027. The reversal of 751649013 is 310946157.

751649013 is a `hidden beast` number, since 7 + 5 + 1 + 649 + 0 + 1 + 3 = 666.

751649013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 751649013 - 2¹ = 751649011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (751649011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54993 + ... + 67286.

It is an arithmetic number, because the mean of its divisors is an integer number (90609480).

Almost surely, 2^751649013 is an apocalyptic number.

It is an amenable number.

751649013 is a deficient number, since it is larger than the sum of its proper divisors (335664747).

751649013 is a wasteful number, since it uses less digits than its factorization.

751649013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122968 (or 122965 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 751649013 is about 27416.2180652256. The cubic root of 751649013 is about 909.2256879877.

The spelling of 751649013 in words is "seven hundred fifty-one million, six hundred forty-nine thousand, thirteen".