7545121366 has 4 divisors (see below), whose sum is σ = 11317682052. Its totient is φ = 3772560682.

The previous prime is 7545121361. The next prime is 7545121379. The reversal of 7545121366 is 6631215457.

7545121366 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6631215457 = 347 ⋅19110131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7545121361) 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 as a sum of consecutive naturals, namely, 1886280340 + ... + 1886280343.

It is an arithmetic number, because the mean of its divisors is an integer number (2829420513).

Almost surely, 2^7545121366 is an apocalyptic number.

7545121366 is a deficient number, since it is larger than the sum of its proper divisors (3772560686).

7545121366 is a wasteful number, since it uses less digits than its factorization.

7545121366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3772560685.

The product of its digits is 151200, while the sum is 40.

The square root of 7545121366 is about 86862.6580643259. The cubic root of 7545121366 is about 1961.3514008902.

The spelling of 7545121366 in words is "seven billion, five hundred forty-five million, one hundred twenty-one thousand, three hundred sixty-six".