2177054838 has 48 divisors (see below), whose sum is σ = 5404782240. Its totient is φ = 620402688.

The previous prime is 2177054821. The next prime is 2177054881. The reversal of 2177054838 is 8384507712.

2177054838 is a `hidden beast` number, since 2 + 1 + 7 + 70 + 548 + 38 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 2177054793 and 2177054802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26806 + ... + 71222.

It is an arithmetic number, because the mean of its divisors is an integer number (112599630).

Almost surely, 2^2177054838 is an apocalyptic number.

2177054838 is an abundant number, since it is smaller than the sum of its proper divisors (3227727402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2177054838 is a wasteful number, since it uses less digits than its factorization.

2177054838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44821 (or 44818 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The square root of 2177054838 is about 46658.9202403999. The cubic root of 2177054838 is about 1296.0540779618.

The spelling of 2177054838 in words is "two billion, one hundred seventy-seven million, fifty-four thousand, eight hundred thirty-eight".