2730477561 has 8 divisors (see below), whose sum is σ = 4160727744. Its totient is φ = 1560272880.

The previous prime is 2730477523. The next prime is 2730477623. The reversal of 2730477561 is 1657740372.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2730477561 - 2⁷ = 2730477433 is a prime.

It is a super-2 number, since 2×2730477561² = 14911015422249017442, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2730377561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65011350 + ... + 65011391.

It is an arithmetic number, because the mean of its divisors is an integer number (520090968).

Almost surely, 2^2730477561 is an apocalyptic number.

2730477561 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2730477561 is a deficient number, since it is larger than the sum of its proper divisors (1430250183).

2730477561 is a wasteful number, since it uses less digits than its factorization.

2730477561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130022751.

The product of its (nonzero) digits is 246960, while the sum is 42.

The square root of 2730477561 is about 52253.9717246450. The cubic root of 2730477561 is about 1397.6964774004.

The spelling of 2730477561 in words is "two billion, seven hundred thirty million, four hundred seventy-seven thousand, five hundred sixty-one".