21474746354071 has 8 divisors (see below), whose sum is σ = 22686602652080. Its totient is φ = 20271050705088.

The previous prime is 21474746354041. The next prime is 21474746354123. The reversal of 21474746354071 is 17045364747412.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21474746354071 is a prime.

It is a super-2 number, since 2×21474746354071² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21474746354041) 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, 2040156846 + ... + 2040167371.

It is an arithmetic number, because the mean of its divisors is an integer number (2835825331510).

Almost surely, 2^{21474746354071} is an apocalyptic number.

21474746354071 is a deficient number, since it is larger than the sum of its proper divisors (1211856298009).

21474746354071 is a wasteful number, since it uses less digits than its factorization.

21474746354071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4080324513.

The product of its (nonzero) digits is 15805440, while the sum is 55.

The spelling of 21474746354071 in words is "twenty-one trillion, four hundred seventy-four billion, seven hundred forty-six million, three hundred fifty-four thousand, seventy-one".