1063990839824 has 40 divisors (see below), whose sum is σ = 2285756797440. Its totient is φ = 475703798400.

The previous prime is 1063990839811. The next prime is 1063990839827. The reversal of 1063990839824 is 4289380993601.

It is a happy number.

It is a super-2 number, since 2×1063990839824² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1063990839827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49541744 + ... + 49563215.

It is an arithmetic number, because the mean of its divisors is an integer number (57143919936).

Almost surely, 2^{1063990839824} is an apocalyptic number.

It is an amenable number.

1063990839824 is an abundant number, since it is smaller than the sum of its proper divisors (1221765957616).

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

1063990839824 is a wasteful number, since it uses less digits than its factorization.

1063990839824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99105039 (or 99105033 counting only the distinct ones).

The product of its (nonzero) digits is 20155392, while the sum is 62.

The spelling of 1063990839824 in words is "one trillion, sixty-three billion, nine hundred ninety million, eight hundred thirty-nine thousand, eight hundred twenty-four".