2745145400249 has 8 divisors (see below), whose sum is σ = 3137320547328. Its totient is φ = 2352973132800.

The previous prime is 2745145400233. The next prime is 2745145400273. The reversal of 2745145400249 is 9420045415472.

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

It is a cyclic number.

It is not a de Polignac number, because 2745145400249 - 2⁴ = 2745145400233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2745145400749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2016104 + ... + 3091110.

It is an arithmetic number, because the mean of its divisors is an integer number (392165068416).

Almost surely, 2^{2745145400249} is an apocalyptic number.

It is an amenable number.

2745145400249 is a deficient number, since it is larger than the sum of its proper divisors (392175147079).

2745145400249 is a wasteful number, since it uses less digits than its factorization.

2745145400249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1439815.

The product of its (nonzero) digits is 1612800, while the sum is 47.

The spelling of 2745145400249 in words is "two trillion, seven hundred forty-five billion, one hundred forty-five million, four hundred thousand, two hundred forty-nine".