2754640581 has 32 divisors (see below), whose sum is σ = 4584231936. Its totient is φ = 1429392000.

The previous prime is 2754640573. The next prime is 2754640583. The reversal of 2754640581 is 1850464572.

It is a happy number.

It is not a de Polignac number, because 2754640581 - 2³ = 2754640573 is a prime.

It is a super-2 number, since 2×2754640581² = 15176089460984035122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2754640583) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 218161 + ... + 230441.

It is an arithmetic number, because the mean of its divisors is an integer number (143257248).

Almost surely, 2^2754640581 is an apocalyptic number.

2754640581 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2754640581 is a deficient number, since it is larger than the sum of its proper divisors (1829591355).

2754640581 is a wasteful number, since it uses less digits than its factorization.

2754640581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13273.

The product of its (nonzero) digits is 268800, while the sum is 42.

The square root of 2754640581 is about 52484.6699618088. The cubic root of 2754640581 is about 1401.8072885495.

The spelling of 2754640581 in words is "two billion, seven hundred fifty-four million, six hundred forty thousand, five hundred eighty-one".