78702084417 has 16 divisors (see below), whose sum is σ = 116635681728. Its totient is φ = 46798265280.

The previous prime is 78702084397. The next prime is 78702084437. The reversal of 78702084417 is 71448020787.

It is an interprime number because it is at equal distance from previous prime (78702084397) and next prime (78702084437).

It is not a de Polignac number, because 78702084417 - 2¹⁸ = 78701822273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78702084437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22497418 + ... + 22500915.

It is an arithmetic number, because the mean of its divisors is an integer number (7289730108).

Almost surely, 2^78702084417 is an apocalyptic number.

It is an amenable number.

78702084417 is a deficient number, since it is larger than the sum of its proper divisors (37933597311).

78702084417 is a wasteful number, since it uses less digits than its factorization.

78702084417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44998400.

The product of its (nonzero) digits is 702464, while the sum is 48.

The spelling of 78702084417 in words is "seventy-eight billion, seven hundred two million, eighty-four thousand, four hundred seventeen".