78161675 has 12 divisors (see below), whose sum is σ = 97575600. Its totient is φ = 62106720.

The previous prime is 78161647. The next prime is 78161683. The reversal of 78161675 is 57616187.

It is a de Polignac number, because none of the positive numbers 2^k-78161675 is a prime.

It is a super-2 number, since 2×78161675² = 12218494877611250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6767 + ... + 14216.

It is an arithmetic number, because the mean of its divisors is an integer number (8131300).

Almost surely, 2^78161675 is an apocalyptic number.

78161675 is a deficient number, since it is larger than the sum of its proper divisors (19413925).

78161675 is a wasteful number, since it uses less digits than its factorization.

78161675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21142 (or 21137 counting only the distinct ones).

The product of its digits is 70560, while the sum is 41.

The square root of 78161675 is about 8840.9091727039. The cubic root of 78161675 is about 427.5608704633.

The spelling of 78161675 in words is "seventy-eight million, one hundred sixty-one thousand, six hundred seventy-five".