2750378554217 has 4 divisors (see below), whose sum is σ = 3143289776256. Its totient is φ = 2357467332180.

The previous prime is 2750378554211. The next prime is 2750378554219. The reversal of 2750378554217 is 7124558730572.

It is a happy number.

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 2750378554217 - 2¹⁰ = 2750378553193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2750378554211) 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, 196455611009 + ... + 196455611022.

It is an arithmetic number, because the mean of its divisors is an integer number (785822444064).

Almost surely, 2^{2750378554217} is an apocalyptic number.

It is an amenable number.

2750378554217 is a deficient number, since it is larger than the sum of its proper divisors (392911222039).

2750378554217 is an equidigital number, since it uses as much as digits as its factorization.

2750378554217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392911222038.

The product of its (nonzero) digits is 16464000, while the sum is 56.

The spelling of 2750378554217 in words is "two trillion, seven hundred fifty billion, three hundred seventy-eight million, five hundred fifty-four thousand, two hundred seventeen".