109589725971 has 24 divisors (see below), whose sum is σ = 172840789056. Its totient is φ = 66358805040.

The previous prime is 109589725969. The next prime is 109589725991. The reversal of 109589725971 is 179527985901.

It is not a de Polignac number, because 109589725971 - 2¹ = 109589725969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 109589725899 and 109589725908.

It is not an unprimeable number, because it can be changed into a prime (109589725991) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 381685 + ... + 604038.

It is an arithmetic number, because the mean of its divisors is an integer number (7201699544).

Almost surely, 2^109589725971 is an apocalyptic number.

109589725971 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

109589725971 is a deficient number, since it is larger than the sum of its proper divisors (63251063085).

109589725971 is a wasteful number, since it uses less digits than its factorization.

109589725971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986863 (or 986860 counting only the distinct ones).

The product of its (nonzero) digits is 14288400, while the sum is 63.

The spelling of 109589725971 in words is "one hundred nine billion, five hundred eighty-nine million, seven hundred twenty-five thousand, nine hundred seventy-one".