81462468471 has 8 divisors (see below), whose sum is σ = 110665995120. Its totient is φ = 53283627072.

The previous prime is 81462468457. The next prime is 81462468491. The reversal of 81462468471 is 17486426418.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 81462468471 - 2⁷ = 81462468343 is a prime.

It is a super-3 number, since 3×81462468471³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81462468401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256171126 + ... + 256171443.

It is an arithmetic number, because the mean of its divisors is an integer number (13833249390).

Almost surely, 2^81462468471 is an apocalyptic number.

81462468471 is a deficient number, since it is larger than the sum of its proper divisors (29203526649).

81462468471 is a wasteful number, since it uses less digits than its factorization.

81462468471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512342625.

The product of its digits is 2064384, while the sum is 51.

The spelling of 81462468471 in words is "eighty-one billion, four hundred sixty-two million, four hundred sixty-eight thousand, four hundred seventy-one".