78157359 has 64 divisors (see below), whose sum is σ = 138547200. Its totient is φ = 42620256.

The previous prime is 78157333. The next prime is 78157361. The reversal of 78157359 is 95375187.

78157359 is a `hidden beast` number, since 78 + 1 + 573 + 5 + 9 = 666.

It is not a de Polignac number, because 78157359 - 2⁸ = 78157103 is a prime.

It is a super-2 number, since 2×78157359² = 12217145531709762, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78157319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 479412 + ... + 479574.

It is an arithmetic number, because the mean of its divisors is an integer number (2164800).

Almost surely, 2^78157359 is an apocalyptic number.

78157359 is a deficient number, since it is larger than the sum of its proper divisors (60389841).

78157359 is a wasteful number, since it uses less digits than its factorization.

78157359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281 (or 275 counting only the distinct ones).

The product of its digits is 264600, while the sum is 45.

The square root of 78157359 is about 8840.6650767915. The cubic root of 78157359 is about 427.5530005079.

The spelling of 78157359 in words is "seventy-eight million, one hundred fifty-seven thousand, three hundred fifty-nine".