1040981510640 has 320 divisors, whose sum is σ = 3666815308800. Its totient is φ = 242875809792.

The previous prime is 1040981510633. The next prime is 1040981510689. The reversal of 1040981510640 is 460151890401.

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, 2870392 + ... + 3212648.

It is an arithmetic number, because the mean of its divisors is an integer number (11458797840).

Almost surely, 2^{1040981510640} is an apocalyptic number.

1040981510640 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 1040981510640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1833407654400).

1040981510640 is an abundant number, since it is smaller than the sum of its proper divisors (2625833798160).

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

1040981510640 is a wasteful number, since it uses less digits than its factorization.

1040981510640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342344 (or 342338 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The spelling of 1040981510640 in words is "one trillion, forty billion, nine hundred eighty-one million, five hundred ten thousand, six hundred forty".