78949716380974 has 16 divisors (see below), whose sum is σ = 119078216899200. Its totient is φ = 39257504334304.

The previous prime is 78949716380959. The next prime is 78949716381017. The reversal of 78949716380974 is 47908361794987.

It is a congruent 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, 131429854 + ... + 132029185.

It is an arithmetic number, because the mean of its divisors is an integer number (7442388556200).

Almost surely, 2^{78949716380974} is an apocalyptic number.

78949716380974 is a deficient number, since it is larger than the sum of its proper divisors (40128500518226).

78949716380974 is a wasteful number, since it uses less digits than its factorization.

78949716380974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263459867.

The product of its (nonzero) digits is 4608866304, while the sum is 82.

The spelling of 78949716380974 in words is "seventy-eight trillion, nine hundred forty-nine billion, seven hundred sixteen million, three hundred eighty thousand, nine hundred seventy-four".