13785771450 has 48 divisors (see below), whose sum is σ = 37296782496. Its totient is φ = 3342004800.

The previous prime is 13785771443. The next prime is 13785771473. The reversal of 13785771450 is 5417758731.

It is a self number, because there is not a number n which added to its sum of digits gives 13785771450.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4175857 + ... + 4179156.

It is an arithmetic number, because the mean of its divisors is an integer number (777016302).

Almost surely, 2^13785771450 is an apocalyptic number.

13785771450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13785771450 is an abundant number, since it is smaller than the sum of its proper divisors (23511011046).

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

13785771450 is a wasteful number, since it uses less digits than its factorization.

13785771450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8355039 (or 8355034 counting only the distinct ones).

The product of its (nonzero) digits is 823200, while the sum is 48.

The spelling of 13785771450 in words is "thirteen billion, seven hundred eighty-five million, seven hundred seventy-one thousand, four hundred fifty".