78136063 has 12 divisors (see below), whose sum is σ = 85874040. Its totient is φ = 70996352.

The previous prime is 78136039. The next prime is 78136067. The reversal of 78136063 is 36063187.

It is not a de Polignac number, because 78136063 - 2²⁵ = 44581631 is a prime.

It is a super-2 number, since 2×78136063² = 12210488682279938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78136067) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3720 + ... + 13042.

It is an arithmetic number, because the mean of its divisors is an integer number (7156170).

Almost surely, 2^78136063 is an apocalyptic number.

78136063 is a deficient number, since it is larger than the sum of its proper divisors (7737977).

78136063 is a wasteful number, since it uses less digits than its factorization.

78136063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9386 (or 9369 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 78136063 is about 8839.4605604641. The cubic root of 78136063 is about 427.5141643449.

The spelling of 78136063 in words is "seventy-eight million, one hundred thirty-six thousand, sixty-three".