1331844922949 has 24 divisors (see below), whose sum is σ = 1460982594720. Its totient is φ = 1213116113664.

The previous prime is 1331844922901. The next prime is 1331844922997. The reversal of 1331844922949 is 9492294481331.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1331844922901) and next prime (1331844922997).

It is not a de Polignac number, because 1331844922949 - 2²⁴ = 1331828145733 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331844922549) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 862922 + ... + 1846164.

It is an arithmetic number, because the mean of its divisors is an integer number (60874274780).

Almost surely, 2^{1331844922949} is an apocalyptic number.

It is an amenable number.

1331844922949 is a deficient number, since it is larger than the sum of its proper divisors (129137671771).

1331844922949 is a wasteful number, since it uses less digits than its factorization.

1331844922949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 983429 (or 983412 counting only the distinct ones).

The product of its digits is 13436928, while the sum is 59.

The spelling of 1331844922949 in words is "one trillion, three hundred thirty-one billion, eight hundred forty-four million, nine hundred twenty-two thousand, nine hundred forty-nine".