7544130006640 has 20 divisors (see below), whose sum is σ = 17540102265624. Its totient is φ = 3017652002624.

The previous prime is 7544130006631. The next prime is 7544130006643. The reversal of 7544130006640 is 466000314457.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 7544130006593 and 7544130006602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7544130006643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47150812462 + ... + 47150812621.

Almost surely, 2^{7544130006640} is an apocalyptic number.

It is an amenable number.

7544130006640 is an abundant number, since it is smaller than the sum of its proper divisors (9995972258984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7544130006640 is a wasteful number, since it uses less digits than its factorization.

7544130006640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94301625096 (or 94301625090 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 40.

The spelling of 7544130006640 in words is "seven trillion, five hundred forty-four billion, one hundred thirty million, six thousand, six hundred forty".