23821453852497 has 32 divisors (see below), whose sum is σ = 40336396277760. Its totient is φ = 13610984945040.

The previous prime is 23821453852477. The next prime is 23821453852507. The reversal of 23821453852497 is 79425835412832.

23821453852497 is a `hidden beast` number, since 2 + 3 + 8 + 2 + 1 + 4 + 5 + 385 + 249 + 7 = 666.

It is not a de Polignac number, because 23821453852497 - 2⁸ = 23821453852241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (23821453852477) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3874053 + ... + 7915250.

It is an arithmetic number, because the mean of its divisors is an integer number (1260512383680).

Almost surely, 2^{23821453852497} is an apocalyptic number.

23821453852497 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

23821453852497 is a deficient number, since it is larger than the sum of its proper divisors (16514942425263).

23821453852497 is a wasteful number, since it uses less digits than its factorization.

23821453852497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11800010 (or 11800004 counting only the distinct ones).

The product of its digits is 116121600, while the sum is 63.

The spelling of 23821453852497 in words is "twenty-three trillion, eight hundred twenty-one billion, four hundred fifty-three million, eight hundred fifty-two thousand, four hundred ninety-seven".