78610537442 has 8 divisors (see below), whose sum is σ = 123042580416. Its totient is φ = 37596343972.

The previous prime is 78610537441. The next prime is 78610537487. The reversal of 78610537442 is 24473501687.

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

It is not an unprimeable number, because it can be changed into a prime (78610537441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 854462318 + ... + 854462409.

It is an arithmetic number, because the mean of its divisors is an integer number (15380322552).

Almost surely, 2^78610537442 is an apocalyptic number.

78610537442 is a deficient number, since it is larger than the sum of its proper divisors (44432042974).

78610537442 is a wasteful number, since it uses less digits than its factorization.

78610537442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1708924752.

The product of its (nonzero) digits is 1128960, while the sum is 47.

The spelling of 78610537442 in words is "seventy-eight billion, six hundred ten million, five hundred thirty-seven thousand, four hundred forty-two".