7216210405400 has 48 divisors (see below), whose sum is σ = 16797221244600. Its totient is φ = 2883123809280.

The previous prime is 7216210405381. The next prime is 7216210405429. The reversal of 7216210405400 is 45040126127.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20829977 + ... + 21173576.

Almost surely, 2^{7216210405400} is an apocalyptic number.

It is an amenable number.

7216210405400 is an abundant number, since it is smaller than the sum of its proper divisors (9581010839200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7216210405400 is a wasteful number, since it uses less digits than its factorization.

7216210405400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42004428 (or 42004419 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The spelling of 7216210405400 in words is "seven trillion, two hundred sixteen billion, two hundred ten million, four hundred five thousand, four hundred".