5135400008 has 8 divisors (see below), whose sum is σ = 9628875030. Its totient is φ = 2567700000.

The previous prime is 5135400007. The next prime is 5135400013. The reversal of 5135400008 is 8000045315.

It can be written as a sum of positive squares in only one way, i.e., 3140705764 + 1994694244 = 56042^2 + 44662^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 5135400008.

It is not an unprimeable number, because it can be changed into a prime (5135400007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 320962493 + ... + 320962508.

Almost surely, 2^5135400008 is an apocalyptic number.

It is an amenable number.

5135400008 is a deficient number, since it is larger than the sum of its proper divisors (4493475022).

5135400008 is a wasteful number, since it uses less digits than its factorization.

5135400008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641925007 (or 641925003 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 5135400008 is about 71661.7053104376. The cubic root of 5135400008 is about 1725.2740594321.

The spelling of 5135400008 in words is "five billion, one hundred thirty-five million, four hundred thousand, eight".