16850376481 has 9 divisors (see below), whose sum is σ = 16948166673. Its totient is φ = 16753149540.

The previous prime is 16850376479. The next prime is 16850376493. The reversal of 16850376481 is 18467305861.

It is a happy number.

The square root of 16850376481 is 129809.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 16850376481 - 2¹ = 16850376479 is a prime.

It is a super-2 number, since 2×16850376481² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16850376401) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 35178000 + ... + 35178478.

Almost surely, 2^16850376481 is an apocalyptic number.

16850376481 is the 129809-th square number.

16850376481 is the 64905-th centered octagonal number.

It is an amenable number.

16850376481 is a deficient number, since it is larger than the sum of its proper divisors (97790192).

16850376481 is an frugal number, since it uses more digits than its factorization.

16850376481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500 (or 750 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 49.

Multiplying 16850376481 by its sum of digits (49), we get a square (825668447569 = 908663²).

The spelling of 16850376481 in words is "sixteen billion, eight hundred fifty million, three hundred seventy-six thousand, four hundred eighty-one".