1039990640832 has 336 divisors, whose sum is σ = 3654361122048. Its totient is φ = 278257858560.

The previous prime is 1039990640831. The next prime is 1039990640837. The reversal of 1039990640832 is 2380460999301.

It is not an unprimeable number, because it can be changed into a prime (1039990640831) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1619983 + ... + 2168945.

It is an arithmetic number, because the mean of its divisors is an integer number (10876074768).

Almost surely, 2^{1039990640832} is an apocalyptic number.

1039990640832 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 1039990640832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1827180561024).

1039990640832 is an abundant number, since it is smaller than the sum of its proper divisors (2614370481216).

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

1039990640832 is a wasteful number, since it uses less digits than its factorization.

1039990640832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549028 (or 549015 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 54.

The spelling of 1039990640832 in words is "one trillion, thirty-nine billion, nine hundred ninety million, six hundred forty thousand, eight hundred thirty-two".