5251929181378 has 16 divisors (see below), whose sum is σ = 8595271697760. Its totient is φ = 2386905602400.

The previous prime is 5251929181361. The next prime is 5251929181379. The reversal of 5251929181378 is 8731819291525.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (5251929181379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16586328 + ... + 16900003.

It is an arithmetic number, because the mean of its divisors is an integer number (537204481110).

Almost surely, 2^{5251929181378} is an apocalyptic number.

5251929181378 is a deficient number, since it is larger than the sum of its proper divisors (3343342516382).

5251929181378 is a wasteful number, since it uses less digits than its factorization.

5251929181378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33493473.

The product of its digits is 10886400, while the sum is 61.

The spelling of 5251929181378 in words is "five trillion, two hundred fifty-one billion, nine hundred twenty-nine million, one hundred eighty-one thousand, three hundred seventy-eight".