23522077621 has 16 divisors (see below), whose sum is σ = 28055865600. Its totient is φ = 19281955968.

The previous prime is 23522077619. The next prime is 23522077681. The reversal of 23522077621 is 12677022532.

It is a cyclic number.

It is not a de Polignac number, because 23522077621 - 2¹ = 23522077619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23522077681) 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 in 15 ways as a sum of consecutive naturals, for example, 1672065 + ... + 1686073.

It is an arithmetic number, because the mean of its divisors is an integer number (1753491600).

Almost surely, 2^23522077621 is an apocalyptic number.

It is an amenable number.

23522077621 is a deficient number, since it is larger than the sum of its proper divisors (4533787979).

23522077621 is a wasteful number, since it uses less digits than its factorization.

23522077621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24468.

The product of its (nonzero) digits is 70560, while the sum is 37.

The spelling of 23522077621 in words is "twenty-three billion, five hundred twenty-two million, seventy-seven thousand, six hundred twenty-one".