2754739981 has 8 divisors (see below), whose sum is σ = 3149034560. Its totient is φ = 2360635488.

The previous prime is 2754739973. The next prime is 2754739987. The reversal of 2754739981 is 1899374572.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2754739981 - 2³ = 2754739973 is a prime.

It is a super-2 number, since 2×2754739981² = 15177184725839760722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2754739987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14976 + ... + 75721.

It is an arithmetic number, because the mean of its divisors is an integer number (393629320).

Almost surely, 2^2754739981 is an apocalyptic number.

It is an amenable number.

2754739981 is a deficient number, since it is larger than the sum of its proper divisors (394294579).

2754739981 is an equidigital number, since it uses as much as digits as its factorization.

2754739981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95043.

The product of its digits is 3810240, while the sum is 55.

The square root of 2754739981 is about 52485.6168964413. The cubic root of 2754739981 is about 1401.8241495475.

It can be divided in two parts, 27547 and 39981, that added together give a triangular number (67528 = T₃₆₇).

The spelling of 2754739981 in words is "two billion, seven hundred fifty-four million, seven hundred thirty-nine thousand, nine hundred eighty-one".