7944914157 has 8 divisors (see below), whose sum is σ = 10594540320. Its totient is φ = 5295948720.

The previous prime is 7944914149. The next prime is 7944914161. The reversal of 7944914157 is 7514194497.

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

It is not a de Polignac number, because 7944914157 - 2³ = 7944914149 is a prime.

It is a super-3 number, since 3×7944914157³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7944914177) 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, 136407 + ... + 185732.

It is an arithmetic number, because the mean of its divisors is an integer number (1324317540).

Almost surely, 2^7944914157 is an apocalyptic number.

It is an amenable number.

7944914157 is a deficient number, since it is larger than the sum of its proper divisors (2649626163).

7944914157 is a wasteful number, since it uses less digits than its factorization.

7944914157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330363.

The product of its digits is 1270080, while the sum is 51.

The square root of 7944914157 is about 89134.2479465665. The cubic root of 7944914157 is about 1995.3989363067.

The spelling of 7944914157 in words is "seven billion, nine hundred forty-four million, nine hundred fourteen thousand, one hundred fifty-seven".