7225517693952 has 132 divisors (see below), whose sum is σ = 20926566171576. Its totient is φ = 2401228431360.

The previous prime is 7225517693941. The next prime is 7225517693981. The reversal of 7225517693952 is 2593967155227.

7225517693952 is a `hidden beast` number, since 7 + 2 + 2 + 5 + 517 + 69 + 3 + 9 + 52 = 666.

It is a super-2 number, since 2×7225517693952² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7225517693952.

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, 1866178 + ... + 4234814.

Almost surely, 2^{7225517693952} is an apocalyptic number.

7225517693952 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7225517693952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10463283085788).

7225517693952 is an abundant number, since it is smaller than the sum of its proper divisors (13701048477624).

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

7225517693952 is a wasteful number, since it uses less digits than its factorization.

7225517693952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2368994 (or 2368973 counting only the distinct ones).

The product of its digits is 71442000, while the sum is 63.

The spelling of 7225517693952 in words is "seven trillion, two hundred twenty-five billion, five hundred seventeen million, six hundred ninety-three thousand, nine hundred fifty-two".