80777437633877 has 8 divisors (see below), whose sum is σ = 80823070993440. Its totient is φ = 80731812134160.

The previous prime is 80777437633859. The next prime is 80777437633889. The reversal of 80777437633877 is 77833673477708.

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 80777437633877 - 2⁴² = 76379391122773 is a prime.

It is a super-2 number, since 2×80777437633877² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80777437633798 and 80777437633807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80773437633877) 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 7 ways as a sum of consecutive naturals, for example, 18656378 + ... + 22574660.

It is an arithmetic number, because the mean of its divisors is an integer number (10102883874180).

Almost surely, 2^{80777437633877} is an apocalyptic number.

It is an amenable number.

80777437633877 is a deficient number, since it is larger than the sum of its proper divisors (45633359563).

80777437633877 is a wasteful number, since it uses less digits than its factorization.

80777437633877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3929923.

The product of its (nonzero) digits is 4879139328, while the sum is 77.

The spelling of 80777437633877 in words is "eighty trillion, seven hundred seventy-seven billion, four hundred thirty-seven million, six hundred thirty-three thousand, eight hundred seventy-seven".