7671021121 has 8 divisors (see below), whose sum is σ = 7807788288. Its totient is φ = 7535052000.

The previous prime is 7671021119. The next prime is 7671021131. The reversal of 7671021121 is 1211201767.

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 7671021121 - 2¹ = 7671021119 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 7671021121.

It is not an unprimeable number, because it can be changed into a prime (7671021131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180100 + ... + 218581.

It is an arithmetic number, because the mean of its divisors is an integer number (975973536).

Almost surely, 2^7671021121 is an apocalyptic number.

7671021121 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

It is an amenable number.

7671021121 is a deficient number, since it is larger than the sum of its proper divisors (136767167).

7671021121 is a wasteful number, since it uses less digits than its factorization.

7671021121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399023.

The product of its (nonzero) digits is 1176, while the sum is 28.

The square root of 7671021121 is about 87584.3657338454. The cubic root of 7671021121 is about 1972.2004769976.

Adding to 7671021121 its reverse (1211201767), we get a palindrome (8882222888).

The spelling of 7671021121 in words is "seven billion, six hundred seventy-one million, twenty-one thousand, one hundred twenty-one".