78063188 has 12 divisors (see below), whose sum is σ = 156126432. Its totient is φ = 33455640.

The previous prime is 78063179. The next prime is 78063197. The reversal of 78063188 is 88136087.

It is an interprime number because it is at equal distance from previous prime (78063179) and next prime (78063197).

78063188 is an admirable number.

It is a super-2 number, since 2×78063188² = 12187722641446688, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1393958 + ... + 1394013.

It is an arithmetic number, because the mean of its divisors is an integer number (13010536).

Almost surely, 2^78063188 is an apocalyptic number.

It is an amenable number.

78063188 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78063188 is a wasteful number, since it uses less digits than its factorization.

78063188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2787982 (or 2787980 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 78063188 is about 8835.3374581846. The cubic root of 78063188 is about 427.3812134200.

The spelling of 78063188 in words is "seventy-eight million, sixty-three thousand, one hundred eighty-eight".