7138123800808 has 128 divisors (see below), whose sum is σ = 18186610821120. Its totient is φ = 2536227567360.

The previous prime is 7138123800799. The next prime is 7138123800809. The reversal of 7138123800808 is 8080083218317.

It is a happy number.

It is a super-2 number, since 2×7138123800808² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7138123800809) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4705060 + ... + 6034387.

It is an arithmetic number, because the mean of its divisors is an integer number (142082897040).

Almost surely, 2^{7138123800808} is an apocalyptic number.

It is an amenable number.

7138123800808 is an abundant number, since it is smaller than the sum of its proper divisors (11048487020312).

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

7138123800808 is a wasteful number, since it uses less digits than its factorization.

7138123800808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10739567 (or 10739563 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 49.

The spelling of 7138123800808 in words is "seven trillion, one hundred thirty-eight billion, one hundred twenty-three million, eight hundred thousand, eight hundred eight".