23276402437 has 2 divisors, whose sum is σ = 23276402438. Its totient is φ = 23276402436.

The previous prime is 23276402423. The next prime is 23276402473. The reversal of 23276402437 is 73420467232.

Together with next prime (23276402473) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22234984996 + 1041417441 = 149114^2 + 32271^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23276402437 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23276402437.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23276402407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11638201218 + 11638201219.

It is an arithmetic number, because the mean of its divisors is an integer number (11638201219).

Almost surely, 2^23276402437 is an apocalyptic number.

It is an amenable number.

23276402437 is a deficient number, since it is larger than the sum of its proper divisors (1).

23276402437 is an equidigital number, since it uses as much as digits as its factorization.

23276402437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 338688, while the sum is 40.

Adding to 23276402437 its reverse (73420467232), we get a palindrome (96696869669).

The spelling of 23276402437 in words is "twenty-three billion, two hundred seventy-six million, four hundred two thousand, four hundred thirty-seven".