7871247461 has 8 divisors (see below), whose sum is σ = 9813503424. Its totient is φ = 6133439520.

The previous prime is 7871247451. The next prime is 7871247491. The reversal of 7871247461 is 1647421787.

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 7871247461 - 2¹⁴ = 7871231077 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 (7871247421) 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, 51111920 + ... + 51112073.

It is an arithmetic number, because the mean of its divisors is an integer number (1226687928).

Almost surely, 2^7871247461 is an apocalyptic number.

It is an amenable number.

7871247461 is a deficient number, since it is larger than the sum of its proper divisors (1942255963).

7871247461 is a wasteful number, since it uses less digits than its factorization.

7871247461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102224011.

The product of its digits is 526848, while the sum is 47.

The square root of 7871247461 is about 88720.0510651341. The cubic root of 7871247461 is about 1989.2125417328.

The spelling of 7871247461 in words is "seven billion, eight hundred seventy-one million, two hundred forty-seven thousand, four hundred sixty-one".