1156341489749 has 8 divisors (see below), whose sum is σ = 1193703858432. Its totient is φ = 1118982935520.

The previous prime is 1156341489731. The next prime is 1156341489757. The reversal of 1156341489749 is 9479841436511.

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 1156341489749 - 2²⁰ = 1156340441173 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1156341489691 and 1156341489700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1156341489769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 331064 + ... + 1556369.

It is an arithmetic number, because the mean of its divisors is an integer number (149212982304).

Almost surely, 2^{1156341489749} is an apocalyptic number.

It is an amenable number.

1156341489749 is a deficient number, since it is larger than the sum of its proper divisors (37362368683).

1156341489749 is a wasteful number, since it uses less digits than its factorization.

1156341489749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1907227.

The product of its digits is 26127360, while the sum is 62.

The spelling of 1156341489749 in words is "one trillion, one hundred fifty-six billion, three hundred forty-one million, four hundred eighty-nine thousand, seven hundred forty-nine".