78545630144 has 28 divisors (see below), whose sum is σ = 155872909488. Its totient is φ = 39270566400.

The previous prime is 78545630117. The next prime is 78545630173. The reversal of 78545630144 is 44103654587.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2057309 + ... + 2095139.

Almost surely, 2^78545630144 is an apocalyptic number.

It is an amenable number.

78545630144 is a deficient number, since it is larger than the sum of its proper divisors (77327279344).

78545630144 is a wasteful number, since it uses less digits than its factorization.

78545630144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70284 (or 70274 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 47.

The spelling of 78545630144 in words is "seventy-eight billion, five hundred forty-five million, six hundred thirty thousand, one hundred forty-four".