7138371720338 has 32 divisors (see below), whose sum is σ = 10804888157760. Its totient is φ = 3536887910400.

The previous prime is 7138371720317. The next prime is 7138371720371. The reversal of 7138371720338 is 8330271738317.

It is a self number, because there is not a number n which added to its sum of digits gives 7138371720338.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 521156306 + ... + 521170002.

It is an arithmetic number, because the mean of its divisors is an integer number (337652754930).

Almost surely, 2^{7138371720338} is an apocalyptic number.

7138371720338 is a deficient number, since it is larger than the sum of its proper divisors (3666516437422).

7138371720338 is a wasteful number, since it uses less digits than its factorization.

7138371720338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18842.

The product of its (nonzero) digits is 3556224, while the sum is 53.

The spelling of 7138371720338 in words is "seven trillion, one hundred thirty-eight billion, three hundred seventy-one million, seven hundred twenty thousand, three hundred thirty-eight".