13445783650 has 72 divisors (see below), whose sum is σ = 28674223884. Its totient is φ = 4672512000.

The previous prime is 13445783639. The next prime is 13445783653. The reversal of 13445783650 is 5638754431.

It can be written as a sum of positive squares in 18 ways, for example, as 66928761 + 13378854889 = 8181^2 + 115667^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13445783650.

It is not an unprimeable number, because it can be changed into a prime (13445783653) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 96850 + ... + 190450.

Almost surely, 2^13445783650 is an apocalyptic number.

13445783650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13445783650 is an abundant number, since it is smaller than the sum of its proper divisors (15228440234).

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

13445783650 is a wasteful number, since it uses less digits than its factorization.

13445783650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93656 (or 93638 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 46.

The spelling of 13445783650 in words is "thirteen billion, four hundred forty-five million, seven hundred eighty-three thousand, six hundred fifty".