2731955616 has 72 divisors (see below), whose sum is σ = 8366625540. Its totient is φ = 840600576.

The previous prime is 2731955609. The next prime is 2731955621. The reversal of 2731955616 is 6165591372.

2731955616 is a `hidden beast` number, since 2 + 73 + 19 + 5 + 561 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2209376016 + 522579600 = 47004^2 + 22860^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 361101 + ... + 368588.

Almost surely, 2^2731955616 is an apocalyptic number.

2731955616 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2731955616 is an abundant number, since it is smaller than the sum of its proper divisors (5634669924).

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

2731955616 is a wasteful number, since it uses less digits than its factorization.

2731955616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729718 (or 729707 counting only the distinct ones).

The product of its digits is 340200, while the sum is 45.

The square root of 2731955616 is about 52268.1128031231. The cubic root of 2731955616 is about 1397.9486310461.

The spelling of 2731955616 in words is "two billion, seven hundred thirty-one million, nine hundred fifty-five thousand, six hundred sixteen".