13046981640 has 128 divisors (see below), whose sum is σ = 48799134720. Its totient is φ = 2711059200.

The previous prime is 13046981627. The next prime is 13046981659. The reversal of 13046981640 is 4618964031.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 13046981592 and 13046981601.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 696766 + ... + 715245.

It is an arithmetic number, because the mean of its divisors is an integer number (381243240).

Almost surely, 2^13046981640 is an apocalyptic number.

13046981640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13046981640 is an abundant number, since it is smaller than the sum of its proper divisors (35752153080).

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

13046981640 is a wasteful number, since it uses less digits than its factorization.

13046981640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1412043 (or 1412039 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The spelling of 13046981640 in words is "thirteen billion, forty-six million, nine hundred eighty-one thousand, six hundred forty".