23534144157049 has 2 divisors, whose sum is σ = 23534144157050. Its totient is φ = 23534144157048.

The previous prime is 23534144157037. The next prime is 23534144157089. The reversal of 23534144157049 is 94075144143532.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21550652183824 + 1983491973225 = 4642268^2 + 1408365^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23534144157049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23534144156987 and 23534144157005.

It is not a weakly prime, because it can be changed into another prime (23534144157089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11767072078524 + 11767072078525.

It is an arithmetic number, because the mean of its divisors is an integer number (11767072078525).

Almost surely, 2^{23534144157049} is an apocalyptic number.

It is an amenable number.

23534144157049 is a deficient number, since it is larger than the sum of its proper divisors (1).

23534144157049 is an equidigital number, since it uses as much as digits as its factorization.

23534144157049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7257600, while the sum is 52.

The spelling of 23534144157049 in words is "twenty-three trillion, five hundred thirty-four billion, one hundred forty-four million, one hundred fifty-seven thousand, forty-nine".