78674036642 has 8 divisors (see below), whose sum is σ = 118153755216. Its totient is φ = 39289451572.

The previous prime is 78674036533. The next prime is 78674036657. The reversal of 78674036642 is 24663047687.

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

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, 23781308 + ... + 23784615.

It is an arithmetic number, because the mean of its divisors is an integer number (14769219402).

Almost surely, 2^78674036642 is an apocalyptic number.

78674036642 is a deficient number, since it is larger than the sum of its proper divisors (39479718574).

78674036642 is a wasteful number, since it uses less digits than its factorization.

78674036642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47566752.

The product of its (nonzero) digits is 8128512, while the sum is 53.

The spelling of 78674036642 in words is "seventy-eight billion, six hundred seventy-four million, thirty-six thousand, six hundred forty-two".