78486135 has 48 divisors (see below), whose sum is σ = 155441664. Its totient is φ = 33111936.

The previous prime is 78486119. The next prime is 78486157. The reversal of 78486135 is 53168487.

It is not a de Polignac number, because 78486135 - 2⁴ = 78486119 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15534 + ... + 19956.

It is an arithmetic number, because the mean of its divisors is an integer number (3238368).

Almost surely, 2^78486135 is an apocalyptic number.

78486135 is a deficient number, since it is larger than the sum of its proper divisors (76955529).

78486135 is a wasteful number, since it uses less digits than its factorization.

78486135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4464 (or 4451 counting only the distinct ones).

The product of its digits is 161280, while the sum is 42.

The square root of 78486135 is about 8859.2400915654. The cubic root of 78486135 is about 428.1516752875.

The spelling of 78486135 in words is "seventy-eight million, four hundred eighty-six thousand, one hundred thirty-five".