1356693973449 has 8 divisors (see below), whose sum is σ = 1904131892640. Its totient is φ = 856859351616.

The previous prime is 1356693973379. The next prime is 1356693973457. The reversal of 1356693973449 is 9443793966531.

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

It is not a de Polignac number, because 1356693973449 - 2⁹ = 1356693972937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1356693973249) 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, 11900824272 + ... + 11900824385.

It is an arithmetic number, because the mean of its divisors is an integer number (238016486580).

Almost surely, 2^{1356693973449} is an apocalyptic number.

1356693973449 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1356693973449 is a deficient number, since it is larger than the sum of its proper divisors (547437919191).

1356693973449 is a wasteful number, since it uses less digits than its factorization.

1356693973449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23801648679.

The product of its digits is 396809280, while the sum is 69.

The spelling of 1356693973449 in words is "one trillion, three hundred fifty-six billion, six hundred ninety-three million, nine hundred seventy-three thousand, four hundred forty-nine".