78549132982 has 8 divisors (see below), whose sum is σ = 117830892816. Its totient is φ = 39272168712.

The previous prime is 78549132979. The next prime is 78549133009. The reversal of 78549132982 is 28923194587.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1157658 + ... + 1223629.

It is an arithmetic number, because the mean of its divisors is an integer number (14728861602).

Almost surely, 2^78549132982 is an apocalyptic number.

78549132982 is a deficient number, since it is larger than the sum of its proper divisors (39281759834).

78549132982 is a wasteful number, since it uses less digits than its factorization.

78549132982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2397782.

The product of its digits is 8709120, while the sum is 58.

The spelling of 78549132982 in words is "seventy-eight billion, five hundred forty-nine million, one hundred thirty-two thousand, nine hundred eighty-two".