7121616373 has 4 divisors (see below), whose sum is σ = 7122542220. Its totient is φ = 7120690528.

The previous prime is 7121616371. The next prime is 7121616377. The reversal of 7121616373 is 3736161217.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3736161217 = 349 ⋅10705333.

It can be written as a sum of positive squares in 2 ways, for example, as 3564448209 + 3557168164 = 59703^2 + 59642^2 .

It is a cyclic number.

It is not a de Polignac number, because 7121616373 - 2¹ = 7121616371 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7121616371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 451288 + ... + 466801.

It is an arithmetic number, because the mean of its divisors is an integer number (1780635555).

Almost surely, 2^7121616373 is an apocalyptic number.

It is an amenable number.

7121616373 is a deficient number, since it is larger than the sum of its proper divisors (925847).

7121616373 is an equidigital number, since it uses as much as digits as its factorization.

7121616373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925846.

The product of its digits is 31752, while the sum is 37.

The square root of 7121616373 is about 84389.6698239779. The cubic root of 7121616373 is about 1923.9459117384.

The spelling of 7121616373 in words is "seven billion, one hundred twenty-one million, six hundred sixteen thousand, three hundred seventy-three".