108948723851 has 18 divisors (see below), whose sum is σ = 124274077452. Its totient is φ = 94716126120.

The previous prime is 108948723823. The next prime is 108948723883. The reversal of 108948723851 is 158327849801.

It is not a de Polignac number, because 108948723851 - 2¹⁸ = 108948461707 is a prime.

It is a super-2 number, since 2×108948723851² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108948713851) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 25176650 + ... + 25180976.

It is an arithmetic number, because the mean of its divisors is an integer number (6904115414).

Almost surely, 2^108948723851 is an apocalyptic number.

108948723851 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

108948723851 is a deficient number, since it is larger than the sum of its proper divisors (15325353601).

108948723851 is an frugal number, since it uses more digits than its factorization.

108948723851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8711 (or 4361 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 56.

The spelling of 108948723851 in words is "one hundred eight billion, nine hundred forty-eight million, seven hundred twenty-three thousand, eight hundred fifty-one".