71485889246421 has 16 divisors (see below), whose sum is σ = 108684428900544. Its totient is φ = 41403591961344.

The previous prime is 71485889246413. The next prime is 71485889246461. The reversal of 71485889246421 is 12464298858417.

It is not a de Polignac number, because 71485889246421 - 2³ = 71485889246413 is a prime.

It is a super-2 number, since 2×71485889246421² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71485889246411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53910926371 + ... + 53910927696.

It is an arithmetic number, because the mean of its divisors is an integer number (6792776806284).

Almost surely, 2^{71485889246421} is an apocalyptic number.

It is an amenable number.

71485889246421 is a deficient number, since it is larger than the sum of its proper divisors (37198539654123).

71485889246421 is a wasteful number, since it uses less digits than its factorization.

71485889246421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107821854100.

The product of its digits is 247726080, while the sum is 69.

The spelling of 71485889246421 in words is "seventy-one trillion, four hundred eighty-five billion, eight hundred eighty-nine million, two hundred forty-six thousand, four hundred twenty-one".