7121877247 has 8 divisors (see below), whose sum is σ = 7133192640. Its totient is φ = 7110573600.

The previous prime is 7121877239. The next prime is 7121877271. The reversal of 7121877247 is 7427781217.

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

It is a cyclic number.

It is not a de Polignac number, because 7121877247 - 2³ = 7121877239 is a prime.

It is a super-2 number, since 2×7121877247² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7121877197 and 7121877206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7121877947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3028122 + ... + 3030472.

It is an arithmetic number, because the mean of its divisors is an integer number (891649080).

Almost surely, 2^7121877247 is an apocalyptic number.

7121877247 is a deficient number, since it is larger than the sum of its proper divisors (11315393).

7121877247 is a wasteful number, since it uses less digits than its factorization.

7121877247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5873.

The product of its digits is 307328, while the sum is 46.

The square root of 7121877247 is about 84391.2154610893. The cubic root of 7121877247 is about 1923.9694036589.

The spelling of 7121877247 in words is "seven billion, one hundred twenty-one million, eight hundred seventy-seven thousand, two hundred forty-seven".