2755946981 has 4 divisors (see below), whose sum is σ = 2756080992. Its totient is φ = 2755812972.

The previous prime is 2755946971. The next prime is 2755947011. The reversal of 2755946981 is 1896495572.

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 2755946981 - 2¹⁸ = 2755684837 is a prime.

It is a super-2 number, since 2×2755946981² = 15190487524166028722, 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 (2755946911) 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, 28955 + ... + 79688.

It is an arithmetic number, because the mean of its divisors is an integer number (689020248).

Almost surely, 2^2755946981 is an apocalyptic number.

It is an amenable number.

2755946981 is a deficient number, since it is larger than the sum of its proper divisors (134011).

2755946981 is a wasteful number, since it uses less digits than its factorization.

2755946981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134010.

The product of its digits is 5443200, while the sum is 56.

The square root of 2755946981 is about 52497.1140254395. The cubic root of 2755946981 is about 1402.0288578807.

The spelling of 2755946981 in words is "two billion, seven hundred fifty-five million, nine hundred forty-six thousand, nine hundred eighty-one".