23651173441 has 6 divisors (see below), whose sum is σ = 27512589570. Its totient is φ = 20272434336.

The previous prime is 23651173397. The next prime is 23651173459. The reversal of 23651173441 is 14437115632.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 18252010000 + 5399163441 = 135100^2 + 73479^2 .

It is not a de Polignac number, because 23651173441 - 2¹⁹ = 23650649153 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23651173441.

It is not an unprimeable number, because it can be changed into a prime (23651173141) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 241338456 + ... + 241338553.

It is an arithmetic number, because the mean of its divisors is an integer number (4585431595).

Almost surely, 2^23651173441 is an apocalyptic number.

It is an amenable number.

23651173441 is a deficient number, since it is larger than the sum of its proper divisors (3861416129).

23651173441 is an equidigital number, since it uses as much as digits as its factorization.

23651173441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482677023 (or 482677016 counting only the distinct ones).

The product of its digits is 60480, while the sum is 37.

The spelling of 23651173441 in words is "twenty-three billion, six hundred fifty-one million, one hundred seventy-three thousand, four hundred forty-one".