16950213738 has 56 divisors (see below), whose sum is σ = 38143203588. Its totient is φ = 5646713472.

The previous prime is 16950213737. The next prime is 16950213739. The reversal of 16950213738 is 83731205961.

16950213738 is a `hidden beast` number, since 1 + 6 + 9 + 502 + 137 + 3 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (16950213737) and next prime (16950213739).

It can be written as a sum of positive squares in 2 ways, for example, as 16929392769 + 20820969 = 130113^2 + 4563^2 .

It is a junction number, because it is equal to n+sod(n) for n = 16950213693 and 16950213702.

It is not an unprimeable number, because it can be changed into a prime (16950213733) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 4221820 + ... + 4225832.

Almost surely, 2^16950213738 is an apocalyptic number.

16950213738 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16950213738, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19071601794).

16950213738 is an abundant number, since it is smaller than the sum of its proper divisors (21192989850).

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

16950213738 is an equidigital number, since it uses as much as digits as its factorization.

16950213738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6930 (or 6915 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 16950213738 in words is "sixteen billion, nine hundred fifty million, two hundred thirteen thousand, seven hundred thirty-eight".