7217030495864 has 64 divisors (see below), whose sum is σ = 15477701952960. Its totient is φ = 3090486896640.

The previous prime is 7217030495821. The next prime is 7217030495951. The reversal of 7217030495864 is 4685940307127.

It is a super-2 number, since 2×7217030495864² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (56).

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, 387232754 + ... + 387251390.

It is an arithmetic number, because the mean of its divisors is an integer number (241839093015).

It is a 1-persistent number, because it is pandigital, but 2⋅7217030495864 = 14434060991728 is not.

Almost surely, 2^{7217030495864} is an apocalyptic number.

It is an amenable number.

7217030495864 is an abundant number, since it is smaller than the sum of its proper divisors (8260671457096).

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

7217030495864 is a wasteful number, since it uses less digits than its factorization.

7217030495864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23928 (or 23924 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 56.

The spelling of 7217030495864 in words is "seven trillion, two hundred seventeen billion, thirty million, four hundred ninety-five thousand, eight hundred sixty-four".