2758644545 has 8 divisors (see below), whose sum is σ = 3314785920. Its totient is φ = 2203974000.

The previous prime is 2758644509. The next prime is 2758644583. The reversal of 2758644545 is 5454468572.

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

It is not a de Polignac number, because 2758644545 - 2¹² = 2758640449 is a prime.

It is a super-2 number, since 2×2758644545² = 15220239451316514050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2758644493 and 2758644502.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 363575 + ... + 371084.

It is an arithmetic number, because the mean of its divisors is an integer number (414348240).

Almost surely, 2^2758644545 is an apocalyptic number.

It is an amenable number.

2758644545 is a deficient number, since it is larger than the sum of its proper divisors (556141375).

2758644545 is an equidigital number, since it uses as much as digits as its factorization.

2758644545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735415.

The product of its digits is 5376000, while the sum is 50.

The square root of 2758644545 is about 52522.8002395150. The cubic root of 2758644545 is about 1402.4861513011.

The spelling of 2758644545 in words is "two billion, seven hundred fifty-eight million, six hundred forty-four thousand, five hundred forty-five".