1838718713157 has 8 divisors (see below), whose sum is σ = 2454026154720. Its totient is φ = 1224611873520.

The previous prime is 1838718713137. The next prime is 1838718713179. The reversal of 1838718713157 is 7513178178381.

It is a happy number.

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

It is not a de Polignac number, because 1838718713157 - 2⁶ = 1838718713093 is a prime.

It is a super-2 number, since 2×1838718713157² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1838718713157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1838718713137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 300146907 + ... + 300153032.

It is an arithmetic number, because the mean of its divisors is an integer number (306753269340).

Almost surely, 2^{1838718713157} is an apocalyptic number.

It is an amenable number.

1838718713157 is a deficient number, since it is larger than the sum of its proper divisors (615307441563).

1838718713157 is a wasteful number, since it uses less digits than its factorization.

1838718713157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600300963.

The product of its digits is 7902720, while the sum is 60.

The spelling of 1838718713157 in words is "one trillion, eight hundred thirty-eight billion, seven hundred eighteen million, seven hundred thirteen thousand, one hundred fifty-seven".