2530644815378 has 4 divisors (see below), whose sum is σ = 3795967223070. Its totient is φ = 1265322407688.

The previous prime is 2530644815339. The next prime is 2530644815411. The reversal of 2530644815378 is 8735184460352.

2530644815378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2468804565049 + 61840250329 = 1571243^2 + 248677^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 632661203843 + ... + 632661203846.

Almost surely, 2^{2530644815378} is an apocalyptic number.

2530644815378 is a deficient number, since it is larger than the sum of its proper divisors (1265322407692).

2530644815378 is a wasteful number, since it uses less digits than its factorization.

2530644815378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1265322407691.

The product of its (nonzero) digits is 19353600, while the sum is 56.

The spelling of 2530644815378 in words is "two trillion, five hundred thirty billion, six hundred forty-four million, eight hundred fifteen thousand, three hundred seventy-eight".