7864541121 has 8 divisors (see below), whose sum is σ = 10487771200. Its totient is φ = 5242169232.

The previous prime is 7864541107. The next prime is 7864541129. The reversal of 7864541121 is 1211454687.

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

It is not a de Polignac number, because 7864541121 - 2¹⁷ = 7864410049 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7864541121.

It is not an unprimeable number, because it can be changed into a prime (7864541129) 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, 192850 + ... + 230043.

It is an arithmetic number, because the mean of its divisors is an integer number (1310971400).

Almost surely, 2^7864541121 is an apocalyptic number.

It is an amenable number.

7864541121 is a deficient number, since it is larger than the sum of its proper divisors (2623230079).

7864541121 is a wasteful number, since it uses less digits than its factorization.

7864541121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429095.

The product of its digits is 53760, while the sum is 39.

The square root of 7864541121 is about 88682.2480601388. The cubic root of 7864541121 is about 1988.6474417206.

The spelling of 7864541121 in words is "seven billion, eight hundred sixty-four million, five hundred forty-one thousand, one hundred twenty-one".