16780402744 has 32 divisors (see below), whose sum is σ = 37521400320. Its totient is φ = 6878922336.

The previous prime is 16780402699. The next prime is 16780402747. The reversal of 16780402744 is 44720408761.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 16780402744.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16780402747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6512844 + ... + 6515419.

It is an arithmetic number, because the mean of its divisors is an integer number (1172543760).

Almost surely, 2^16780402744 is an apocalyptic number.

16780402744 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

16780402744 is an abundant number, since it is smaller than the sum of its proper divisors (20740997576).

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

16780402744 is a wasteful number, since it uses less digits than its factorization.

16780402744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13028299 (or 13028295 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 43.

The spelling of 16780402744 in words is "sixteen billion, seven hundred eighty million, four hundred two thousand, seven hundred forty-four".