7157156211 has 6 divisors (see below), whose sum is σ = 10338114540. Its totient is φ = 4771437468.

The previous prime is 7157156183. The next prime is 7157156231. The reversal of 7157156211 is 1126517517.

It is a happy number.

7157156211 is a `hidden beast` number, since 7 + 15 + 7 + 15 + 621 + 1 = 666.

It is not a de Polignac number, because 7157156211 - 2⁹ = 7157155699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7157156231) 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 5 ways as a sum of consecutive naturals, for example, 397619781 + ... + 397619798.

It is an arithmetic number, because the mean of its divisors is an integer number (1723019090).

Almost surely, 2^7157156211 is an apocalyptic number.

7157156211 is a deficient number, since it is larger than the sum of its proper divisors (3180958329).

7157156211 is a wasteful number, since it uses less digits than its factorization.

7157156211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795239585 (or 795239582 counting only the distinct ones).

The product of its digits is 14700, while the sum is 36.

The square root of 7157156211 is about 84599.9776063800. The cubic root of 7157156211 is about 1927.1410336484.

The spelling of 7157156211 in words is "seven billion, one hundred fifty-seven million, one hundred fifty-six thousand, two hundred eleven".