4669751421 has 12 divisors (see below), whose sum is σ = 6747265980. Its totient is φ = 3112212480.

The previous prime is 4669751407. The next prime is 4669751431. The reversal of 4669751421 is 1241579664.

4669751421 is a `hidden beast` number, since 46 + 6 + 97 + 514 + 2 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3550848921 + 1118902500 = 59589^2 + 33450^2 .

It is not a de Polignac number, because 4669751421 - 2¹⁵ = 4669718653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4669751431) 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, 47970 + ... + 107891.

It is an arithmetic number, because the mean of its divisors is an integer number (562272165).

Almost surely, 2^4669751421 is an apocalyptic number.

It is an amenable number.

4669751421 is a deficient number, since it is larger than the sum of its proper divisors (2077514559).

4669751421 is a wasteful number, since it uses less digits than its factorization.

4669751421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159196 (or 159193 counting only the distinct ones).

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

The square root of 4669751421 is about 68335.5794663366. The cubic root of 4669751421 is about 1671.4674398995.

The spelling of 4669751421 in words is "four billion, six hundred sixty-nine million, seven hundred fifty-one thousand, four hundred twenty-one".