4126764921 has 8 divisors (see below), whose sum is σ = 5503469184. Its totient is φ = 2750618640.

The previous prime is 4126764913. The next prime is 4126764947. The reversal of 4126764921 is 1294676214.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4126764921 - 2³ = 4126764913 is a prime.

It is a super-2 number, since 2×4126764921² = 34060377426392272482, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4126764991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121921 + ... + 152046.

It is an arithmetic number, because the mean of its divisors is an integer number (687933648).

Almost surely, 2^4126764921 is an apocalyptic number.

It is an amenable number.

4126764921 is a deficient number, since it is larger than the sum of its proper divisors (1376704263).

4126764921 is a wasteful number, since it uses less digits than its factorization.

4126764921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278991.

The product of its digits is 145152, while the sum is 42.

The square root of 4126764921 is about 64239.9013153040. The cubic root of 4126764921 is about 1603.9958614630.

The spelling of 4126764921 in words is "four billion, one hundred twenty-six million, seven hundred sixty-four thousand, nine hundred twenty-one".