1391358318087 has 32 divisors (see below), whose sum is σ = 1892139999232. Its totient is φ = 909215090784.

The previous prime is 1391358318067. The next prime is 1391358318101. The reversal of 1391358318087 is 7808138531931.

It is not a de Polignac number, because 1391358318087 - 2¹¹ = 1391358316039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1391358318037) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 121330128 + ... + 121341594.

It is an arithmetic number, because the mean of its divisors is an integer number (59129374976).

Almost surely, 2^{1391358318087} is an apocalyptic number.

1391358318087 is a deficient number, since it is larger than the sum of its proper divisors (500781681145).

1391358318087 is a wasteful number, since it uses less digits than its factorization.

1391358318087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14467.

The product of its (nonzero) digits is 4354560, while the sum is 57.

The spelling of 1391358318087 in words is "one trillion, three hundred ninety-one billion, three hundred fifty-eight million, three hundred eighteen thousand, eighty-seven".