6945149157 has 8 divisors (see below), whose sum is σ = 9457224576. Its totient is φ = 4531586592.

The previous prime is 6945149033. The next prime is 6945149243. The reversal of 6945149157 is 7519415496.

It is a happy number.

6945149157 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6945149157 - 2⁸ = 6945148901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6945149957) 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 7 ways as a sum of consecutive naturals, for example, 24628048 + ... + 24628329.

It is an arithmetic number, because the mean of its divisors is an integer number (1182153072).

Almost surely, 2^6945149157 is an apocalyptic number.

It is an amenable number.

6945149157 is a deficient number, since it is larger than the sum of its proper divisors (2512075419).

6945149157 is a wasteful number, since it uses less digits than its factorization.

6945149157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49256427.

The product of its digits is 1360800, while the sum is 51.

The square root of 6945149157 is about 83337.5615014022. The cubic root of 6945149157 is about 1907.9216042993.

The spelling of 6945149157 in words is "six billion, nine hundred forty-five million, one hundred forty-nine thousand, one hundred fifty-seven".