78506881061038 has 8 divisors (see below), whose sum is σ = 117762940310040. Its totient is φ = 39252567624360.

The previous prime is 78506881060849. The next prime is 78506881061053. The reversal of 78506881061038 is 83016018860587.

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, 436340653 + ... + 436520536.

It is an arithmetic number, because the mean of its divisors is an integer number (14720367538755).

Almost surely, 2^{78506881061038} is an apocalyptic number.

78506881061038 is a deficient number, since it is larger than the sum of its proper divisors (39256059249002).

78506881061038 is a wasteful number, since it uses less digits than its factorization.

78506881061038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872906162.

The product of its (nonzero) digits is 15482880, while the sum is 61.

The spelling of 78506881061038 in words is "seventy-eight trillion, five hundred six billion, eight hundred eighty-one million, sixty-one thousand, thirty-eight".