10981811791630 has 16 divisors (see below), whose sum is σ = 19767346331040. Its totient is φ = 4392705804192.

The previous prime is 10981811791579. The next prime is 10981811791633. The reversal of 10981811791630 is 3619711818901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10981811791633) 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, 207991 + ... + 4691149.

It is an arithmetic number, because the mean of its divisors is an integer number (1235459145690).

Almost surely, 2^{10981811791630} is an apocalyptic number.

10981811791630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10981811791630 is a deficient number, since it is larger than the sum of its proper divisors (8785534539410).

10981811791630 is a wasteful number, since it uses less digits than its factorization.

10981811791630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4728123.

The product of its (nonzero) digits is 653184, while the sum is 55.

The spelling of 10981811791630 in words is "ten trillion, nine hundred eighty-one billion, eight hundred eleven million, seven hundred ninety-one thousand, six hundred thirty".