23537653839851 has 2 divisors, whose sum is σ = 23537653839852. Its totient is φ = 23537653839850.

The previous prime is 23537653839829. The next prime is 23537653839857. The reversal of 23537653839851 is 15893835673532.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23537653839851 - 2³⁰ = 23536580098027 is a prime.

It is a super-2 number, since 2×23537653839851² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23537653839857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11768826919925 + 11768826919926.

It is an arithmetic number, because the mean of its divisors is an integer number (11768826919926).

Almost surely, 2^{23537653839851} is an apocalyptic number.

23537653839851 is a deficient number, since it is larger than the sum of its proper divisors (1).

23537653839851 is an equidigital number, since it uses as much as digits as its factorization.

23537653839851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 489888000, while the sum is 68.

The spelling of 23537653839851 in words is "twenty-three trillion, five hundred thirty-seven billion, six hundred fifty-three million, eight hundred thirty-nine thousand, eight hundred fifty-one".