2745705178125 has 384 divisors, whose sum is σ = 6278668139520. Its totient is φ = 1154736000000.

The previous prime is 2745705178091. The next prime is 2745705178127. The reversal of 2745705178125 is 5218715075472.

2745705178125 is a `hidden beast` number, since 2 + 7 + 4 + 570 + 51 + 7 + 8 + 12 + 5 = 666.

It is not a de Polignac number, because 2745705178125 - 2⁹ = 2745705177613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2745705178127) by changing a digit.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 4153865295 + ... + 4153865955.

It is an arithmetic number, because the mean of its divisors is an integer number (16350698280).

Almost surely, 2^{2745705178125} is an apocalyptic number.

2745705178125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2745705178125 is an abundant number, since it is smaller than the sum of its proper divisors (3532962961395).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2745705178125 is an equidigital number, since it uses as much as digits as its factorization.

2745705178125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256 (or 1230 counting only the distinct ones).

The product of its (nonzero) digits is 5488000, while the sum is 54.

The spelling of 2745705178125 in words is "two trillion, seven hundred forty-five billion, seven hundred five million, one hundred seventy-eight thousand, one hundred twenty-five".