78275068 has 24 divisors (see below), whose sum is σ = 140767200. Its totient is φ = 38062080.

The previous prime is 78275063. The next prime is 78275077. The reversal of 78275068 is 86057287.

It is a happy number.

It is a super-2 number, since 2×78275068² = 12253972540809248, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78275063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73105 + ... + 74167.

It is an arithmetic number, because the mean of its divisors is an integer number (5865300).

Almost surely, 2^78275068 is an apocalyptic number.

It is an amenable number.

78275068 is a deficient number, since it is larger than the sum of its proper divisors (62492132).

78275068 is a wasteful number, since it uses less digits than its factorization.

78275068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1557 (or 1555 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 43.

The square root of 78275068 is about 8847.3198201489. The cubic root of 78275068 is about 427.7675317774.

The spelling of 78275068 in words is "seventy-eight million, two hundred seventy-five thousand, sixty-eight".