7831980761 has 8 divisors (see below), whose sum is σ = 8752369248. Its totient is φ = 6946324000.

The previous prime is 7831980743. The next prime is 7831980781. The reversal of 7831980761 is 1670891387.

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

It is not a de Polignac number, because 7831980761 - 2³⁰ = 6758238937 is a prime.

It is a super-2 number, since 2×7831980761² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7831980701) 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, 8682455 + ... + 8683356.

It is an arithmetic number, because the mean of its divisors is an integer number (1094046156).

Almost surely, 2^7831980761 is an apocalyptic number.

It is an amenable number.

7831980761 is a deficient number, since it is larger than the sum of its proper divisors (920388487).

7831980761 is a wasteful number, since it uses less digits than its factorization.

7831980761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17365863.

The product of its (nonzero) digits is 508032, while the sum is 50.

The square root of 7831980761 is about 88498.4788626336. The cubic root of 7831980761 is about 1985.8992143123.

The spelling of 7831980761 in words is "seven billion, eight hundred thirty-one million, nine hundred eighty thousand, seven hundred sixty-one".