2756470381 has 4 divisors (see below), whose sum is σ = 3150251872. Its totient is φ = 2362688892.

The previous prime is 2756470361. The next prime is 2756470393. The reversal of 2756470381 is 1830746572.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2756470381 - 2²⁹ = 2219599469 is a prime.

It is a super-2 number, since 2×2756470381² = 15196257922660570322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2756470361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196890735 + ... + 196890748.

It is an arithmetic number, because the mean of its divisors is an integer number (787562968).

Almost surely, 2^2756470381 is an apocalyptic number.

It is an amenable number.

2756470381 is a deficient number, since it is larger than the sum of its proper divisors (393781491).

2756470381 is an equidigital number, since it uses as much as digits as its factorization.

2756470381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393781490.

The product of its (nonzero) digits is 282240, while the sum is 43.

The square root of 2756470381 is about 52502.0988247137. The cubic root of 2756470381 is about 1402.1176084335.

The spelling of 2756470381 in words is "two billion, seven hundred fifty-six million, four hundred seventy thousand, three hundred eighty-one".