78742509004117 has 8 divisors (see below), whose sum is σ = 90102402418112. Its totient is φ = 67410356479200.

The previous prime is 78742509004111. The next prime is 78742509004151. The reversal of 78742509004117 is 71140090524787.

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

It is not a de Polignac number, because 78742509004117 - 2⁴³ = 69946415981909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78742509004111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6935216184 + ... + 6935227537.

It is an arithmetic number, because the mean of its divisors is an integer number (11262800302264).

Almost surely, 2^{78742509004117} is an apocalyptic number.

It is an amenable number.

78742509004117 is a deficient number, since it is larger than the sum of its proper divisors (11359893413995).

78742509004117 is a wasteful number, since it uses less digits than its factorization.

78742509004117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13870444539.

The product of its (nonzero) digits is 3951360, while the sum is 55.

The spelling of 78742509004117 in words is "seventy-eight trillion, seven hundred forty-two billion, five hundred nine million, four thousand, one hundred seventeen".