1145827788949 has 4 divisors (see below), whose sum is σ = 1145832180480. Its totient is φ = 1145823397420.

The previous prime is 1145827788923. The next prime is 1145827788967. The reversal of 1145827788949 is 9498877285411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1145827788949 - 2⁷ = 1145827788821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145827758949) 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, 1777879 + ... + 2335060.

It is an arithmetic number, because the mean of its divisors is an integer number (286458045120).

Almost surely, 2^{1145827788949} is an apocalyptic number.

It is an amenable number.

1145827788949 is a deficient number, since it is larger than the sum of its proper divisors (4391531).

1145827788949 is an equidigital number, since it uses as much as digits as its factorization.

1145827788949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4391530.

The product of its digits is 325140480, while the sum is 73.

The spelling of 1145827788949 in words is "one trillion, one hundred forty-five billion, eight hundred twenty-seven million, seven hundred eighty-eight thousand, nine hundred forty-nine".