80120877611 has 4 divisors (see below), whose sum is σ = 80197257000. Its totient is φ = 80044498224.

The previous prime is 80120877601. The next prime is 80120877623. The reversal of 80120877611 is 11677802108.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80120877611 - 2¹⁸ = 80120615467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80120877601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38188121 + ... + 38190218.

It is an arithmetic number, because the mean of its divisors is an integer number (20049314250).

Almost surely, 2^80120877611 is an apocalyptic number.

80120877611 is a deficient number, since it is larger than the sum of its proper divisors (76379389).

80120877611 is a wasteful number, since it uses less digits than its factorization.

80120877611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76379388.

The product of its (nonzero) digits is 37632, while the sum is 41.

The spelling of 80120877611 in words is "eighty billion, one hundred twenty million, eight hundred seventy-seven thousand, six hundred eleven".