7220457552138 has 8 divisors (see below), whose sum is σ = 14440915104288. Its totient is φ = 2406819184044.

The previous prime is 7220457552097. The next prime is 7220457552151. The reversal of 7220457552138 is 8312557540227.

It is a sphenic number, since it is the product of 3 distinct primes.

7220457552138 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 601704796006 + ... + 601704796017.

It is an arithmetic number, because the mean of its divisors is an integer number (1805114388036).

Almost surely, 2^{7220457552138} is an apocalyptic number.

7220457552138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

7220457552138 is a wasteful number, since it uses less digits than its factorization.

7220457552138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1203409592028.

The product of its (nonzero) digits is 4704000, while the sum is 51.

The spelling of 7220457552138 in words is "seven trillion, two hundred twenty billion, four hundred fifty-seven million, five hundred fifty-two thousand, one hundred thirty-eight".