7464747562121 has 4 divisors (see below), whose sum is σ = 7722152650500. Its totient is φ = 7207342473744.

The previous prime is 7464747562037. The next prime is 7464747562157. The reversal of 7464747562121 is 1212657474647.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1328406079225 + 6136341482896 = 1152565^2 + 2477164^2 .

It is a cyclic number.

It is not a de Polignac number, because 7464747562121 - 2²² = 7464743367817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7464747592121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128702544146 + ... + 128702544203.

It is an arithmetic number, because the mean of its divisors is an integer number (1930538162625).

Almost surely, 2^{7464747562121} is an apocalyptic number.

It is an amenable number.

7464747562121 is a deficient number, since it is larger than the sum of its proper divisors (257405088379).

7464747562121 is a wasteful number, since it uses less digits than its factorization.

7464747562121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257405088378.

The product of its digits is 15805440, while the sum is 56.

The spelling of 7464747562121 in words is "seven trillion, four hundred sixty-four billion, seven hundred forty-seven million, five hundred sixty-two thousand, one hundred twenty-one".