23285400484637 has 2 divisors, whose sum is σ = 23285400484638. Its totient is φ = 23285400484636.

The previous prime is 23285400484571. The next prime is 23285400484673. The reversal of 23285400484637 is 73648400458232.

Together with next prime (23285400484673) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19946817386596 + 3338583098041 = 4466186^2 + 1827179^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23285400484637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23285400484037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11642700242318 + 11642700242319.

It is an arithmetic number, because the mean of its divisors is an integer number (11642700242319).

Almost surely, 2^{23285400484637} is an apocalyptic number.

It is an amenable number.

23285400484637 is a deficient number, since it is larger than the sum of its proper divisors (1).

23285400484637 is an equidigital number, since it uses as much as digits as its factorization.

23285400484637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30965760, while the sum is 56.

The spelling of 23285400484637 in words is "twenty-three trillion, two hundred eighty-five billion, four hundred million, four hundred eighty-four thousand, six hundred thirty-seven".