1043640754560 has 768 divisors, whose sum is σ = 3897032106240. Its totient is φ = 266642399232.

The previous prime is 1043640754531. The next prime is 1043640754619. The reversal of 1043640754560 is 654570463401.

1043640754560 is a `hidden beast` number, since 1 + 0 + 4 + 3 + 6 + 40 + 7 + 545 + 60 = 666.

1043640754560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 385532727 + ... + 385535433.

It is an arithmetic number, because the mean of its divisors is an integer number (5074260555).

Almost surely, 2^{1043640754560} is an apocalyptic number.

1043640754560 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 1043640754560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1948516053120).

1043640754560 is an abundant number, since it is smaller than the sum of its proper divisors (2853391351680).

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

1043640754560 is an equidigital number, since it uses as much as digits as its factorization.

1043640754560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2845 (or 2821 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 45.

The spelling of 1043640754560 in words is "one trillion, forty-three billion, six hundred forty million, seven hundred fifty-four thousand, five hundred sixty".