2512043771378 has 4 divisors (see below), whose sum is σ = 3768065657070. Its totient is φ = 1256021885688.

The previous prime is 2512043771323. The next prime is 2512043771383. The reversal of 2512043771378 is 8731773402152.

It is a happy number.

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., 2463967508209 + 48076263169 = 1569703^2 + 219263^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 628010942843 + ... + 628010942846.

Almost surely, 2^{2512043771378} is an apocalyptic number.

2512043771378 is a deficient number, since it is larger than the sum of its proper divisors (1256021885692).

2512043771378 is a wasteful number, since it uses less digits than its factorization.

2512043771378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256021885691.

The product of its (nonzero) digits is 1975680, while the sum is 50.

The spelling of 2512043771378 in words is "two trillion, five hundred twelve billion, forty-three million, seven hundred seventy-one thousand, three hundred seventy-eight".