16827951481 has 32 divisors (see below), whose sum is σ = 19648137600. Its totient is φ = 14266560000.

The previous prime is 16827951473. The next prime is 16827951527. The reversal of 16827951481 is 18415972861.

It is not a de Polignac number, because 16827951481 - 2³ = 16827951473 is a prime.

It is a super-2 number, since 2×16827951481² (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 (16827951431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1314610 + ... + 1327348.

It is an arithmetic number, because the mean of its divisors is an integer number (614004300).

Almost surely, 2^16827951481 is an apocalyptic number.

16827951481 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16827951481 is a deficient number, since it is larger than the sum of its proper divisors (2820186119).

16827951481 is a wasteful number, since it uses less digits than its factorization.

16827951481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12921.

The product of its digits is 967680, while the sum is 52.

The spelling of 16827951481 in words is "sixteen billion, eight hundred twenty-seven million, nine hundred fifty-one thousand, four hundred eighty-one".