81046026244430 has 96 divisors (see below), whose sum is σ = 164381181909120. Its totient is φ = 28733359374720.

The previous prime is 81046026244411. The next prime is 81046026244433. The reversal of 81046026244430 is 3444262064018.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81046026244433) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5163836 + ... + 13738895.

It is an arithmetic number, because the mean of its divisors is an integer number (1712303978220).

Almost surely, 2^{81046026244430} is an apocalyptic number.

81046026244430 is an abundant number, since it is smaller than the sum of its proper divisors (83335155664690).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

81046026244430 is a wasteful number, since it uses less digits than its factorization.

81046026244430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18902866 (or 18902853 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 44.

The spelling of 81046026244430 in words is "eighty-one trillion, forty-six billion, twenty-six million, two hundred forty-four thousand, four hundred thirty".