1161870073728 has 512 divisors, whose sum is σ = 4058170368000. Its totient is φ = 285955743744.

The previous prime is 1161870073699. The next prime is 1161870073759. The reversal of 1161870073728 is 8273700781611.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 44470653 + ... + 44496771.

It is an arithmetic number, because the mean of its divisors is an integer number (7926114000).

Almost surely, 2^{1161870073728} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1161870073728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2029085184000).

1161870073728 is an abundant number, since it is smaller than the sum of its proper divisors (2896300294272).

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

1161870073728 is a wasteful number, since it uses less digits than its factorization.

1161870073728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26242 (or 26230 counting only the distinct ones).

The product of its (nonzero) digits is 790272, while the sum is 51.

The spelling of 1161870073728 in words is "one trillion, one hundred sixty-one billion, eight hundred seventy million, seventy-three thousand, seven hundred twenty-eight".