5121746964 has 84 divisors (see below), whose sum is σ = 13872181120. Its totient is φ = 1652147280.

The previous prime is 5121746921. The next prime is 5121746969. The reversal of 5121746964 is 4696471215.

5121746964 is a `hidden beast` number, since 5 + 121 + 7 + 469 + 64 = 666.

It is a super-3 number, since 3×5121746964³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5121746969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 62067 + ... + 118725.

Almost surely, 2^5121746964 is an apocalyptic number.

5121746964 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5121746964, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6936090560).

5121746964 is an abundant number, since it is smaller than the sum of its proper divisors (8750434156).

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

5121746964 is a wasteful number, since it uses less digits than its factorization.

5121746964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56712 (or 56695 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 5121746964 is about 71566.3815209348. The cubic root of 5121746964 is about 1723.7437568099.

The spelling of 5121746964 in words is "five billion, one hundred twenty-one million, seven hundred forty-six thousand, nine hundred sixty-four".