23521012546 has 4 divisors (see below), whose sum is σ = 35281518822. Its totient is φ = 11760506272.

The previous prime is 23521012477. The next prime is 23521012547. The reversal of 23521012546 is 64521012532.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 14331681225 + 9189331321 = 119715^2 + 95861^2 .

It is a super-3 number, since 3×23521012546³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (23521012547) 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 as a sum of consecutive naturals, namely, 5880253135 + ... + 5880253138.

Almost surely, 2^23521012546 is an apocalyptic number.

23521012546 is a deficient number, since it is larger than the sum of its proper divisors (11760506276).

23521012546 is a wasteful number, since it uses less digits than its factorization.

23521012546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11760506275.

The product of its (nonzero) digits is 14400, while the sum is 31.

The spelling of 23521012546 in words is "twenty-three billion, five hundred twenty-one million, twelve thousand, five hundred forty-six".