7261303493664 has 120 divisors (see below), whose sum is σ = 23296682133648. Its totient is φ = 2200394989440.

The previous prime is 7261303493599. The next prime is 7261303493671. The reversal of 7261303493664 is 4663943031627.

It is a happy number.

7261303493664 is a `hidden beast` number, since 7 + 2 + 61 + 30 + 3 + 493 + 6 + 64 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 7261303493664.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 127309162 + ... + 127366185.

Almost surely, 2^{7261303493664} is an apocalyptic number.

It is an amenable number.

7261303493664 is an abundant number, since it is smaller than the sum of its proper divisors (16035378639984).

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

7261303493664 is a wasteful number, since it uses less digits than its factorization.

7261303493664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254675380 (or 254675363 counting only the distinct ones).

The product of its (nonzero) digits is 11757312, while the sum is 54.

The spelling of 7261303493664 in words is "seven trillion, two hundred sixty-one billion, three hundred three million, four hundred ninety-three thousand, six hundred sixty-four".