23698154475937 has 2 divisors, whose sum is σ = 23698154475938. Its totient is φ = 23698154475936.

The previous prime is 23698154475911. The next prime is 23698154475943. The reversal of 23698154475937 is 73957445189632.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22761906651136 + 936247824801 = 4770944^2 + 967599^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23698154475937 is a prime.

It is a super-2 number, since 2×23698154475937² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23698154475937.

It is not a weakly prime, because it can be changed into another prime (23698154475967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11849077237968 + 11849077237969.

It is an arithmetic number, because the mean of its divisors is an integer number (11849077237969).

Almost surely, 2^{23698154475937} is an apocalyptic number.

It is an amenable number.

23698154475937 is a deficient number, since it is larger than the sum of its proper divisors (1).

23698154475937 is an equidigital number, since it uses as much as digits as its factorization.

23698154475937 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1371686400, while the sum is 73.

The spelling of 23698154475937 in words is "twenty-three trillion, six hundred ninety-eight billion, one hundred fifty-four million, four hundred seventy-five thousand, nine hundred thirty-seven".