78790999258 has 8 divisors (see below), whose sum is σ = 118228432320. Its totient is φ = 39381521820.

The previous prime is 78790999223. The next prime is 78790999277. The reversal of 78790999258 is 85299909787.

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

It is an unprimeable number.

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, 6981858 + ... + 6993133.

It is an arithmetic number, because the mean of its divisors is an integer number (14778554040).

Almost surely, 2^78790999258 is an apocalyptic number.

78790999258 is a deficient number, since it is larger than the sum of its proper divisors (39437433062).

78790999258 is a wasteful number, since it uses less digits than its factorization.

78790999258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13977812.

The product of its (nonzero) digits is 205752960, while the sum is 73.

The spelling of 78790999258 in words is "seventy-eight billion, seven hundred ninety million, nine hundred ninety-nine thousand, two hundred fifty-eight".