7849315157 has 8 divisors (see below), whose sum is σ = 8311838976. Its totient is φ = 7386880192.

The previous prime is 7849315153. The next prime is 7849315193. The reversal of 7849315157 is 7515139487.

It is a happy number.

7849315157 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 a cyclic number.

It is not a de Polignac number, because 7849315157 - 2² = 7849315153 is a prime.

It is a super-2 number, since 2×7849315157² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7849315153) 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, 268418 + ... + 296220.

It is an arithmetic number, because the mean of its divisors is an integer number (1038979872).

Almost surely, 2^7849315157 is an apocalyptic number.

It is an amenable number.

7849315157 is a deficient number, since it is larger than the sum of its proper divisors (462523819).

7849315157 is a wasteful number, since it uses less digits than its factorization.

7849315157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44427.

The product of its digits is 1058400, while the sum is 50.

The square root of 7849315157 is about 88596.3608564144. The cubic root of 7849315157 is about 1987.3632542390.

The spelling of 7849315157 in words is "seven billion, eight hundred forty-nine million, three hundred fifteen thousand, one hundred fifty-seven".