6403929489471 has 8 divisors (see below), whose sum is σ = 8538884082304. Its totient is φ = 4269130611480.

The previous prime is 6403929489401. The next prime is 6403929489533. The reversal of 6403929489471 is 1749849293046.

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

It is not a de Polignac number, because 6403929489471 - 2¹⁷ = 6403929358399 is a prime.

It is a super-3 number, since 3×6403929489471³ (a number of 39 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6403929489401) 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, 38832715 + ... + 38997276.

It is an arithmetic number, because the mean of its divisors is an integer number (1067360510288).

Almost surely, 2^{6403929489471} is an apocalyptic number.

6403929489471 is a deficient number, since it is larger than the sum of its proper divisors (2134954592833).

6403929489471 is a wasteful number, since it uses less digits than its factorization.

6403929489471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77857421.

The product of its (nonzero) digits is 94058496, while the sum is 66.

The spelling of 6403929489471 in words is "six trillion, four hundred three billion, nine hundred twenty-nine million, four hundred eighty-nine thousand, four hundred seventy-one".