106928881549 has 16 divisors (see below), whose sum is σ = 128786486400. Its totient is φ = 86728057344.

The previous prime is 106928881441. The next prime is 106928881571. The reversal of 106928881549 is 945188829601.

It is a cyclic number.

It is not a de Polignac number, because 106928881549 - 2⁷ = 106928881421 is a prime.

It is a super-4 number, since 4×106928881549⁴ (a number of 45 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106928885549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 355084 + ... + 583045.

It is an arithmetic number, because the mean of its divisors is an integer number (8049155400).

Almost surely, 2^106928881549 is an apocalyptic number.

106928881549 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

106928881549 is a deficient number, since it is larger than the sum of its proper divisors (21857604851).

106928881549 is an equidigital number, since it uses as much as digits as its factorization.

106928881549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939012.

The product of its (nonzero) digits is 9953280, while the sum is 61.

The spelling of 106928881549 in words is "one hundred six billion, nine hundred twenty-eight million, eight hundred eighty-one thousand, five hundred forty-nine".