2775541920 has 48 divisors (see below), whose sum is σ = 8742958560. Its totient is φ = 740144384.

The previous prime is 2775541877. The next prime is 2775541961. The reversal of 2775541920 is 291455772.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2890710 + ... + 2891669.

It is an arithmetic number, because the mean of its divisors is an integer number (182144970).

Almost surely, 2^2775541920 is an apocalyptic number.

2775541920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2775541920 is an abundant number, since it is smaller than the sum of its proper divisors (5967416640).

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

2775541920 is a wasteful number, since it uses less digits than its factorization.

2775541920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5782397 (or 5782389 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 42.

The square root of 2775541920 is about 52683.4121901761. The cubic root of 2775541920 is about 1405.3438485011.

The spelling of 2775541920 in words is "two billion, seven hundred seventy-five million, five hundred forty-one thousand, nine hundred twenty".