1318881945007 has 16 divisors (see below), whose sum is σ = 1469135655072. Its totient is φ = 1173927237120.

The previous prime is 1318881944999. The next prime is 1318881945019. The reversal of 1318881945007 is 7005491888131.

It is not a de Polignac number, because 1318881945007 - 2³ = 1318881944999 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 (1318881945077) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5884308 + ... + 6104329.

It is an arithmetic number, because the mean of its divisors is an integer number (91820978442).

Almost surely, 2^{1318881945007} is an apocalyptic number.

1318881945007 is a deficient number, since it is larger than the sum of its proper divisors (150253710065).

1318881945007 is a wasteful number, since it uses less digits than its factorization.

1318881945007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11988858.

The product of its (nonzero) digits is 1935360, while the sum is 55.

The spelling of 1318881945007 in words is "one trillion, three hundred eighteen billion, eight hundred eighty-one million, nine hundred forty-five thousand, seven".