1358804181779 has 8 divisors (see below), whose sum is σ = 1482458335680. Its totient is φ = 1235171111400.

The previous prime is 1358804181731. The next prime is 1358804181781. The reversal of 1358804181779 is 9771814088531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1358804181779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1358804181979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5135969 + ... + 5394050.

It is an arithmetic number, because the mean of its divisors is an integer number (185307291960).

Almost surely, 2^{1358804181779} is an apocalyptic number.

1358804181779 is a deficient number, since it is larger than the sum of its proper divisors (123654153901).

1358804181779 is a wasteful number, since it uses less digits than its factorization.

1358804181779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10541761.

The product of its (nonzero) digits is 13547520, while the sum is 62.

The spelling of 1358804181779 in words is "one trillion, three hundred fifty-eight billion, eight hundred four million, one hundred eighty-one thousand, seven hundred seventy-nine".