10691931552 has 96 divisors (see below), whose sum is σ = 28353011904. Its totient is φ = 3527731200.

The previous prime is 10691931517. The next prime is 10691931557. The reversal of 10691931552 is 25513919601.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×10691931552² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10691931557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5536027 + ... + 5537957.

It is an arithmetic number, because the mean of its divisors is an integer number (295343874).

Almost surely, 2^10691931552 is an apocalyptic number.

10691931552 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 10691931552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14176505952).

10691931552 is an abundant number, since it is smaller than the sum of its proper divisors (17661080352).

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

10691931552 is a wasteful number, since it uses less digits than its factorization.

10691931552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2502 (or 2494 counting only the distinct ones).

The product of its (nonzero) digits is 72900, while the sum is 42.

The spelling of 10691931552 in words is "ten billion, six hundred ninety-one million, nine hundred thirty-one thousand, five hundred fifty-two".