4664043749 has 4 divisors (see below), whose sum is σ = 4664352864. Its totient is φ = 4663734636.

The previous prime is 4664043739. The next prime is 4664043767. The reversal of 4664043749 is 9473404664.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4664043749 - 2⁸ = 4664043493 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4664043739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130697 + ... + 162510.

It is an arithmetic number, because the mean of its divisors is an integer number (1166088216).

Almost surely, 2^4664043749 is an apocalyptic number.

It is an amenable number.

4664043749 is a deficient number, since it is larger than the sum of its proper divisors (309115).

4664043749 is a wasteful number, since it uses less digits than its factorization.

4664043749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309114.

The product of its (nonzero) digits is 1741824, while the sum is 47.

The square root of 4664043749 is about 68293.8046165243. The cubic root of 4664043749 is about 1670.7861704153.

The spelling of 4664043749 in words is "four billion, six hundred sixty-four million, forty-three thousand, seven hundred forty-nine".