78535481472850 has 24 divisors (see below), whose sum is σ = 146408742722880. Its totient is φ = 31342634055120.

The previous prime is 78535481472809. The next prime is 78535481472869. The reversal of 78535481472850 is 5827418453587.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1788941182 + ... + 1788985081.

It is an arithmetic number, because the mean of its divisors is an integer number (6100364280120).

Almost surely, 2^{78535481472850} is an apocalyptic number.

78535481472850 is a deficient number, since it is larger than the sum of its proper divisors (67873261250030).

78535481472850 is a wasteful number, since it uses less digits than its factorization.

78535481472850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3577926714 (or 3577926709 counting only the distinct ones).

The product of its (nonzero) digits is 301056000, while the sum is 67.

The spelling of 78535481472850 in words is "seventy-eight trillion, five hundred thirty-five billion, four hundred eighty-one million, four hundred seventy-two thousand, eight hundred fifty".