71226863212646 has 16 divisors (see below), whose sum is σ = 107096045238000. Its totient is φ = 35528182676448.

The previous prime is 71226863212633. The next prime is 71226863212651. The reversal of 71226863212646 is 64621236862217.

71226863212646 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×71226863212646² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 71226863212591 and 71226863212600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186291680 + ... + 186673628.

It is an arithmetic number, because the mean of its divisors is an integer number (6693502827375).

Almost surely, 2^{71226863212646} is an apocalyptic number.

71226863212646 is a deficient number, since it is larger than the sum of its proper divisors (35869182025354).

71226863212646 is a wasteful number, since it uses less digits than its factorization.

71226863212646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604903.

The product of its digits is 13934592, while the sum is 56.

The spelling of 71226863212646 in words is "seventy-one trillion, two hundred twenty-six billion, eight hundred sixty-three million, two hundred twelve thousand, six hundred forty-six".