1318858331078 has 16 divisors (see below), whose sum is σ = 1997923956336. Its totient is φ = 652884002400.

The previous prime is 1318858331057. The next prime is 1318858331107. The reversal of 1318858331078 is 8701338588131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16087400 + ... + 16169172.

It is an arithmetic number, because the mean of its divisors is an integer number (124870247271).

Almost surely, 2^{1318858331078} is an apocalyptic number.

1318858331078 is a deficient number, since it is larger than the sum of its proper divisors (679065625258).

1318858331078 is a wasteful number, since it uses less digits than its factorization.

1318858331078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161719.

The product of its (nonzero) digits is 3870720, while the sum is 56.

The spelling of 1318858331078 in words is "one trillion, three hundred eighteen billion, eight hundred fifty-eight million, three hundred thirty-one thousand, seventy-eight".