2758732961 has 4 divisors (see below), whose sum is σ = 2764492800. Its totient is φ = 2752973124.

The previous prime is 2758732943. The next prime is 2758732979. The reversal of 2758732961 is 1692378572.

2758732961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 an interprime number because it is at equal distance from previous prime (2758732943) and next prime (2758732979).

It is a cyclic number.

It is not a de Polignac number, because 2758732961 - 2²⁶ = 2691624097 is a prime.

It is a super-2 number, since 2×2758732961² = 15221215100215655042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2758732931) 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, 2879201 + ... + 2880158.

It is an arithmetic number, because the mean of its divisors is an integer number (691123200).

Almost surely, 2^2758732961 is an apocalyptic number.

It is an amenable number.

2758732961 is a deficient number, since it is larger than the sum of its proper divisors (5759839).

2758732961 is an equidigital number, since it uses as much as digits as its factorization.

2758732961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5759838.

The product of its digits is 1270080, while the sum is 50.

The square root of 2758732961 is about 52523.6419243754. The cubic root of 2758732961 is about 1402.5011346125.

The spelling of 2758732961 in words is "two billion, seven hundred fifty-eight million, seven hundred thirty-two thousand, nine hundred sixty-one".