78045675 has 24 divisors (see below), whose sum is σ = 130301184. Its totient is φ = 41216160.

The previous prime is 78045661. The next prime is 78045677. The reversal of 78045675 is 57654087.

It is not a de Polignac number, because 78045675 - 2⁴ = 78045659 is a prime.

It is a super-2 number, since 2×78045675² = 12182254772411250, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78045677) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2674 + ... + 12776.

It is an arithmetic number, because the mean of its divisors is an integer number (5429216).

Almost surely, 2^78045675 is an apocalyptic number.

78045675 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

78045675 is a deficient number, since it is larger than the sum of its proper divisors (52255509).

78045675 is a wasteful number, since it uses less digits than its factorization.

78045675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10219 (or 10214 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 42.

The square root of 78045675 is about 8834.3463255637. The cubic root of 78045675 is about 427.3492509070.

The spelling of 78045675 in words is "seventy-eight million, forty-five thousand, six hundred seventy-five".