8193973157 has 8 divisors (see below), whose sum is σ = 8677570176. Its totient is φ = 7710553792.

The previous prime is 8193973129. The next prime is 8193973199. The reversal of 8193973157 is 7513793918.

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 8193973157 - 2⁶ = 8193973093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8193973099 and 8193973108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8193970157) 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 7 ways as a sum of consecutive naturals, for example, 57218 + ... + 140220.

It is an arithmetic number, because the mean of its divisors is an integer number (1084696272).

Almost surely, 2^8193973157 is an apocalyptic number.

It is an amenable number.

8193973157 is a deficient number, since it is larger than the sum of its proper divisors (483597019).

8193973157 is a wasteful number, since it uses less digits than its factorization.

8193973157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88827.

The product of its digits is 1428840, while the sum is 53.

The square root of 8193973157 is about 90520.5675910177. The cubic root of 8193973157 is about 2016.0355172321.

The spelling of 8193973157 in words is "eight billion, one hundred ninety-three million, nine hundred seventy-three thousand, one hundred fifty-seven".