2077947398171 has 16 divisors (see below), whose sum is σ = 2131050509280. Its totient is φ = 2025065387520.

The previous prime is 2077947398159. The next prime is 2077947398231. The reversal of 2077947398171 is 1718937497702.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2077947398171 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2077947398098 and 2077947398107.

It is not an unprimeable number, because it can be changed into a prime (2077947398101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47431745 + ... + 47475533.

It is an arithmetic number, because the mean of its divisors is an integer number (133190656830).

Almost surely, 2^{2077947398171} is an apocalyptic number.

2077947398171 is a deficient number, since it is larger than the sum of its proper divisors (53103111109).

2077947398171 is a wasteful number, since it uses less digits than its factorization.

2077947398171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46286.

The product of its (nonzero) digits is 37340352, while the sum is 65.

The spelling of 2077947398171 in words is "two trillion, seventy-seven billion, nine hundred forty-seven million, three hundred ninety-eight thousand, one hundred seventy-one".