1618927312497 has 16 divisors (see below), whose sum is σ = 2399233618368. Its totient is φ = 962655462080.

The previous prime is 1618927312433. The next prime is 1618927312517. The reversal of 1618927312497 is 7942137298161.

It is a cyclic number.

It is not a de Polignac number, because 1618927312497 - 2⁶ = 1618927312433 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1618927312497.

It is not an unprimeable number, because it can be changed into a prime (1618927312417) 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, 462813378 + ... + 462816875.

It is an arithmetic number, because the mean of its divisors is an integer number (149952101148).

Almost surely, 2^{1618927312497} is an apocalyptic number.

It is an amenable number.

1618927312497 is a deficient number, since it is larger than the sum of its proper divisors (780306305871).

1618927312497 is a wasteful number, since it uses less digits than its factorization.

1618927312497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925630320.

The product of its digits is 9144576, while the sum is 60.

The spelling of 1618927312497 in words is "one trillion, six hundred eighteen billion, nine hundred twenty-seven million, three hundred twelve thousand, four hundred ninety-seven".