7544664741 has 4 divisors (see below), whose sum is σ = 10059552992. Its totient is φ = 5029776492.

The previous prime is 7544664689. The next prime is 7544664797. The reversal of 7544664741 is 1474664457.

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 not a de Polignac number, because 7544664741 - 2¹¹ = 7544662693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7544664341) 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, 1257444121 + ... + 1257444126.

It is an arithmetic number, because the mean of its divisors is an integer number (2514888248).

Almost surely, 2^7544664741 is an apocalyptic number.

It is an amenable number.

7544664741 is a deficient number, since it is larger than the sum of its proper divisors (2514888251).

7544664741 is a wasteful number, since it uses less digits than its factorization.

7544664741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2514888250.

The product of its digits is 2257920, while the sum is 48.

The square root of 7544664741 is about 86860.0295935939. The cubic root of 7544664741 is about 1961.3118335943.

The spelling of 7544664741 in words is "seven billion, five hundred forty-four million, six hundred sixty-four thousand, seven hundred forty-one".