7212716716406 has 32 divisors (see below), whose sum is σ = 11157064027200. Its totient is φ = 3495474057600.

The previous prime is 7212716716391. The next prime is 7212716716661. The reversal of 7212716716406 is 6046176172127.

It is a super-2 number, since 2×7212716716406² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16668620 + ... + 17095856.

It is an arithmetic number, because the mean of its divisors is an integer number (348658250850).

Almost surely, 2^{7212716716406} is an apocalyptic number.

7212716716406 is a deficient number, since it is larger than the sum of its proper divisors (3944347310794).

7212716716406 is a wasteful number, since it uses less digits than its factorization.

7212716716406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429320.

The product of its (nonzero) digits is 1185408, while the sum is 50.

The spelling of 7212716716406 in words is "seven trillion, two hundred twelve billion, seven hundred sixteen million, seven hundred sixteen thousand, four hundred six".