1149643537399 has 8 divisors (see below), whose sum is σ = 1316490416640. Its totient is φ = 983449680216.

The previous prime is 1149643537391. The next prime is 1149643537519. The reversal of 1149643537399 is 9937353469411.

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

It is a cyclic number.

It is not a de Polignac number, because 1149643537399 - 2³ = 1149643537391 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1149643537399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1149643537391) 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, 163251739 + ... + 163258780.

It is an arithmetic number, because the mean of its divisors is an integer number (164561302080).

Almost surely, 2^{1149643537399} is an apocalyptic number.

1149643537399 is a deficient number, since it is larger than the sum of its proper divisors (166846879241).

1149643537399 is an equidigital number, since it uses as much as digits as its factorization.

1149643537399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326511029.

The product of its digits is 66134880, while the sum is 64.

The spelling of 1149643537399 in words is "one trillion, one hundred forty-nine billion, six hundred forty-three million, five hundred thirty-seven thousand, three hundred ninety-nine".