80140846218877 has 4 divisors (see below), whose sum is σ = 80140982358780. Its totient is φ = 80140710078976.

The previous prime is 80140846218871. The next prime is 80140846218883. The reversal of 80140846218877 is 77881264804108.

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

It is an interprime number because it is at equal distance from previous prime (80140846218871) and next prime (80140846218883).

It can be written as a sum of positive squares in 2 ways, for example, as 47760068869956 + 32380777348921 = 6910866^2 + 5690411^2 .

It is a cyclic number.

It is not a de Polignac number, because 80140846218877 - 2³¹ = 80138698735229 is a prime.

It is a super-2 number, since 2×80140846218877² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80140846218871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67183102 + ... + 68365567.

It is an arithmetic number, because the mean of its divisors is an integer number (20035245589695).

Almost surely, 2^{80140846218877} is an apocalyptic number.

It is an amenable number.

80140846218877 is a deficient number, since it is larger than the sum of its proper divisors (136139903).

80140846218877 is a wasteful number, since it uses less digits than its factorization.

80140846218877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136139902.

The product of its (nonzero) digits is 38535168, while the sum is 64.

The spelling of 80140846218877 in words is "eighty trillion, one hundred forty billion, eight hundred forty-six million, two hundred eighteen thousand, eight hundred seventy-seven".