78768514 has 32 divisors (see below), whose sum is σ = 142425216. Its totient is φ = 32229120.

The previous prime is 78768499. The next prime is 78768517. The reversal of 78768514 is 41586787.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (78768517) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4024 + ... + 13180.

It is an arithmetic number, because the mean of its divisors is an integer number (4450788).

Almost surely, 2^78768514 is an apocalyptic number.

78768514 is a deficient number, since it is larger than the sum of its proper divisors (63656702).

78768514 is a wasteful number, since it uses less digits than its factorization.

78768514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9210.

The product of its digits is 376320, while the sum is 46.

The square root of 78768514 is about 8875.1627590710. The cubic root of 78768514 is about 428.6645316352.

The spelling of 78768514 in words is "seventy-eight million, seven hundred sixty-eight thousand, five hundred fourteen".