7867513157 has 12 divisors (see below), whose sum is σ = 9447232896. Its totient is φ = 6526046520.

The previous prime is 7867513133. The next prime is 7867513177. The reversal of 7867513157 is 7513157687.

It is a de Polignac number, because none of the positive numbers 2^k-7867513157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7867513117) 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 11 ways as a sum of consecutive naturals, for example, 2588183 + ... + 2591220.

It is an arithmetic number, because the mean of its divisors is an integer number (787269408).

Almost surely, 2^7867513157 is an apocalyptic number.

It is an amenable number.

7867513157 is a deficient number, since it is larger than the sum of its proper divisors (1579719739).

7867513157 is a wasteful number, since it uses less digits than its factorization.

7867513157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5179448 (or 5179441 counting only the distinct ones).

The product of its digits is 1234800, while the sum is 50.

The square root of 7867513157 is about 88699.0031341954. The cubic root of 7867513157 is about 1988.8979156450.

The spelling of 7867513157 in words is "seven billion, eight hundred sixty-seven million, five hundred thirteen thousand, one hundred fifty-seven".