2545781018 has 8 divisors (see below), whose sum is σ = 4165823520. Its totient is φ = 1157173180.

The previous prime is 2545781003. The next prime is 2545781089. The reversal of 2545781018 is 8101875452.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57858638 + ... + 57858681.

It is an arithmetic number, because the mean of its divisors is an integer number (520727940).

Almost surely, 2^2545781018 is an apocalyptic number.

2545781018 is a deficient number, since it is larger than the sum of its proper divisors (1620042502).

2545781018 is a wasteful number, since it uses less digits than its factorization.

2545781018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115717332.

The product of its (nonzero) digits is 89600, while the sum is 41.

The square root of 2545781018 is about 50455.7332520299. The cubic root of 2545781018 is about 1365.4433331212.

The spelling of 2545781018 in words is "two billion, five hundred forty-five million, seven hundred eighty-one thousand, eighteen".