1128837844992 has 1664 divisors, whose sum is σ = 4108976750592. Its totient is φ = 269903462400.

The previous prime is 1128837844991. The next prime is 1128837844993. The reversal of 1128837844992 is 2994487388211.

It is an interprime number because it is at equal distance from previous prime (1128837844991) and next prime (1128837844993).

It is a tau number, because it is divible by the number of its divisors (1664).

It is a super-4 number, since 4×1128837844992⁴ (a number of 49 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is not an unprimeable number, because it can be changed into a prime (1128837844991) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 21298827238 + ... + 21298827290.

Almost surely, 2^{1128837844992} is an apocalyptic number.

1128837844992 is a gapful number since it is divisible by the number (12) 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 1128837844992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2054488375296).

1128837844992 is an abundant number, since it is smaller than the sum of its proper divisors (2980138905600).

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

1128837844992 is a wasteful number, since it uses less digits than its factorization.

1128837844992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175 (or 153 counting only the distinct ones).

The product of its digits is 55738368, while the sum is 66.

The spelling of 1128837844992 in words is "one trillion, one hundred twenty-eight billion, eight hundred thirty-seven million, eight hundred forty-four thousand, nine hundred ninety-two".