838110057545 has 4 divisors (see below), whose sum is σ = 1005732069060. Its totient is φ = 670488046032.

The previous prime is 838110057541. The next prime is 838110057667. The reversal of 838110057545 is 545750011838.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 545750011838 = 2 ⋅272875005919.

It can be written as a sum of positive squares in 2 ways, for example, as 419516585401 + 418593472144 = 647701^2 + 646988^2 .

It is a cyclic number.

It is not a de Polignac number, because 838110057545 - 2² = 838110057541 is a prime.

It is a super-2 number, since 2×838110057545² (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 838110057545.

It is not an unprimeable number, because it can be changed into a prime (838110057541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83811005750 + ... + 83811005759.

It is an arithmetic number, because the mean of its divisors is an integer number (251433017265).

Almost surely, 2^838110057545 is an apocalyptic number.

It is an amenable number.

838110057545 is a deficient number, since it is larger than the sum of its proper divisors (167622011515).

838110057545 is a wasteful number, since it uses less digits than its factorization.

838110057545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167622011514.

The product of its (nonzero) digits is 672000, while the sum is 47.

The spelling of 838110057545 in words is "eight hundred thirty-eight billion, one hundred ten million, fifty-seven thousand, five hundred forty-five".