80761619971 has 8 divisors (see below), whose sum is σ = 82036152000. Its totient is φ = 79489121448.

The previous prime is 80761619951. The next prime is 80761620031. The reversal of 80761619971 is 17991616708.

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 80761619971 - 2⁹ = 80761619459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80761619921) 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, 428221 + ... + 587278.

It is an arithmetic number, because the mean of its divisors is an integer number (10254519000).

Almost surely, 2^80761619971 is an apocalyptic number.

80761619971 is a deficient number, since it is larger than the sum of its proper divisors (1274532029).

80761619971 is a wasteful number, since it uses less digits than its factorization.

80761619971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016753.

The product of its (nonzero) digits is 1143072, while the sum is 55.

The spelling of 80761619971 in words is "eighty billion, seven hundred sixty-one million, six hundred nineteen thousand, nine hundred seventy-one".