10204240632491 has 4 divisors (see below), whose sum is σ = 10533409685184. Its totient is φ = 9875071579800.

The previous prime is 10204240632463. The next prime is 10204240632529. The reversal of 10204240632491 is 19423604240201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10204240632491 - 2¹⁴ = 10204240616107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10204240632461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164584526300 + ... + 164584526361.

It is an arithmetic number, because the mean of its divisors is an integer number (2633352421296).

Almost surely, 2^{10204240632491} is an apocalyptic number.

10204240632491 is a deficient number, since it is larger than the sum of its proper divisors (329169052693).

10204240632491 is an equidigital number, since it uses as much as digits as its factorization.

10204240632491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329169052692.

The product of its (nonzero) digits is 82944, while the sum is 38.

Adding to 10204240632491 its reverse (19423604240201), we get a palindrome (29627844872692).

The spelling of 10204240632491 in words is "ten trillion, two hundred four billion, two hundred forty million, six hundred thirty-two thousand, four hundred ninety-one".