620378243211138 has 8 divisors (see below), whose sum is σ = 1240756486422288. Its totient is φ = 206792747737044.

The previous prime is 620378243211101. The next prime is 620378243211161. The reversal of 620378243211138 is 831112342873026.

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

620378243211138 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51698186934256 + ... + 51698186934267.

It is an arithmetic number, because the mean of its divisors is an integer number (155094560802786).

Almost surely, 2^{620378243211138} is an apocalyptic number.

620378243211138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

620378243211138 is a wasteful number, since it uses less digits than its factorization.

620378243211138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103396373868528.

The product of its (nonzero) digits is 2322432, while the sum is 51.

The spelling of 620378243211138 in words is "six hundred twenty trillion, three hundred seventy-eight billion, two hundred forty-three million, two hundred eleven thousand, one hundred thirty-eight".