7933478157 has 24 divisors (see below), whose sum is σ = 12518981280. Its totient is φ = 4801344480.

The previous prime is 7933478143. The next prime is 7933478191. The reversal of 7933478157 is 7518743397.

It is not a de Polignac number, because 7933478157 - 2²⁴ = 7916700941 is a prime.

It is a super-5 number, since 5×7933478157⁵ (a number of 51 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7933478197) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13678 + ... + 126704.

It is an arithmetic number, because the mean of its divisors is an integer number (521624220).

Almost surely, 2^7933478157 is an apocalyptic number.

It is an amenable number.

7933478157 is a deficient number, since it is larger than the sum of its proper divisors (4585503123).

7933478157 is a wasteful number, since it uses less digits than its factorization.

7933478157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113753 (or 113750 counting only the distinct ones).

The product of its digits is 4445280, while the sum is 54.

The square root of 7933478157 is about 89070.0744189652. The cubic root of 7933478157 is about 1994.4410765835.

The spelling of 7933478157 in words is "seven billion, nine hundred thirty-three million, four hundred seventy-eight thousand, one hundred fifty-seven".