1144709547920 has 160 divisors (see below), whose sum is σ = 2850000588288. Its totient is φ = 426065854464.

The previous prime is 1144709547907. The next prime is 1144709547941. The reversal of 1144709547920 is 297459074411.

It is a Cunningham number, because it is equal to 1069911²-1.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 145503827 + ... + 145511693.

Almost surely, 2^{1144709547920} is an apocalyptic number.

1144709547920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1144709547920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1425000294144).

1144709547920 is an abundant number, since it is smaller than the sum of its proper divisors (1705291040368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1144709547920 is a wasteful number, since it uses less digits than its factorization.

1144709547920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9097 (or 9091 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 53.

The spelling of 1144709547920 in words is "one trillion, one hundred forty-four billion, seven hundred nine million, five hundred forty-seven thousand, nine hundred twenty".