78220246204115 has 8 divisors (see below), whose sum is σ = 94098370997088. Its totient is φ = 62420146595200.

The previous prime is 78220246204099. The next prime is 78220246204129. The reversal of 78220246204115 is 51140264202287.

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

It is not a de Polignac number, because 78220246204115 - 2⁴ = 78220246204099 is a prime.

It is a super-2 number, since 2×78220246204115² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19506293807 + ... + 19506297816.

It is an arithmetic number, because the mean of its divisors is an integer number (11762296374636).

Almost surely, 2^{78220246204115} is an apocalyptic number.

78220246204115 is a deficient number, since it is larger than the sum of its proper divisors (15878124792973).

78220246204115 is a wasteful number, since it uses less digits than its factorization.

78220246204115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39012592029.

The product of its (nonzero) digits is 430080, while the sum is 44.

The spelling of 78220246204115 in words is "seventy-eight trillion, two hundred twenty billion, two hundred forty-six million, two hundred four thousand, one hundred fifteen".