10535671840 has 24 divisors (see below), whose sum is σ = 24890525100. Its totient is φ = 4214268672.

The previous prime is 10535671807. The next prime is 10535671849. The reversal of 10535671840 is 4817653501.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9633029904 + 902641936 = 98148^2 + 30044^2 .

It is a super-2 number, since 2×10535671840² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 10535671793 and 10535671802.

It is not an unprimeable number, because it can be changed into a prime (10535671849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32923815 + ... + 32924134.

Almost surely, 2^10535671840 is an apocalyptic number.

10535671840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10535671840 is an abundant number, since it is smaller than the sum of its proper divisors (14354853260).

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

10535671840 is an equidigital number, since it uses as much as digits as its factorization.

10535671840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65847964 (or 65847956 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 40.

The spelling of 10535671840 in words is "ten billion, five hundred thirty-five million, six hundred seventy-one thousand, eight hundred forty".