4867764921 has 12 divisors (see below), whose sum is σ = 7444817172. Its totient is φ = 3054283776.

The previous prime is 4867764917. The next prime is 4867764929. The reversal of 4867764921 is 1294677684.

4867764921 is a `hidden beast` number, since 4 + 86 + 7 + 76 + 492 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4020954921 + 846810000 = 63411^2 + 29100^2 .

It is not a de Polignac number, because 4867764921 - 2² = 4867764917 is a prime.

It is a super-2 number, since 2×4867764921² = 47390270652236272482, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4867764929) 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 11 ways as a sum of consecutive naturals, for example, 15907576 + ... + 15907881.

It is an arithmetic number, because the mean of its divisors is an integer number (620401431).

Almost surely, 2^4867764921 is an apocalyptic number.

It is an amenable number.

4867764921 is a deficient number, since it is larger than the sum of its proper divisors (2577052251).

4867764921 is a wasteful number, since it uses less digits than its factorization.

4867764921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31815480 (or 31815477 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 54.

The square root of 4867764921 is about 69769.3695041026. The cubic root of 4867764921 is about 1694.7664794329.

The spelling of 4867764921 in words is "four billion, eight hundred sixty-seven million, seven hundred sixty-four thousand, nine hundred twenty-one".