1147213617999 has 4 divisors (see below), whose sum is σ = 1529618157336. Its totient is φ = 764809078664.

The previous prime is 1147213617989. The next prime is 1147213618013. The reversal of 1147213617999 is 9997163127411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1147213617999 - 2³¹ = 1145066134351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1147213617929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191202269664 + ... + 191202269669.

It is an arithmetic number, because the mean of its divisors is an integer number (382404539334).

Almost surely, 2^{1147213617999} is an apocalyptic number.

1147213617999 is a deficient number, since it is larger than the sum of its proper divisors (382404539337).

1147213617999 is an equidigital number, since it uses as much as digits as its factorization.

1147213617999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382404539336.

The product of its digits is 5143824, while the sum is 60.

The spelling of 1147213617999 in words is "one trillion, one hundred forty-seven billion, two hundred thirteen million, six hundred seventeen thousand, nine hundred ninety-nine".