16757639481 has 32 divisors (see below), whose sum is σ = 24903272448. Its totient is φ = 9936987840.

The previous prime is 16757639477. The next prime is 16757639497. The reversal of 16757639481 is 18493675761.

It is a happy number.

It is not a de Polignac number, because 16757639481 - 2² = 16757639477 is a prime.

It is a super-2 number, since 2×16757639481² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16757639411) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 628830 + ... + 654936.

It is an arithmetic number, because the mean of its divisors is an integer number (778227264).

Almost surely, 2^16757639481 is an apocalyptic number.

16757639481 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16757639481 is a deficient number, since it is larger than the sum of its proper divisors (8145632967).

16757639481 is a wasteful number, since it uses less digits than its factorization.

16757639481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26541.

The product of its digits is 7620480, while the sum is 57.

The spelling of 16757639481 in words is "sixteen billion, seven hundred fifty-seven million, six hundred thirty-nine thousand, four hundred eighty-one".