5136157278 has 144 divisors (see below), whose sum is σ = 13391554176. Its totient is φ = 1393524000.

The previous prime is 5136157237. The next prime is 5136157297. The reversal of 5136157278 is 8727516315.

It is a happy number.

5136157278 is a `hidden beast` number, since 5 + 1 + 3 + 6 + 1 + 572 + 78 = 666.

It is a super-2 number, since 2×5136157278² = 52760223168704738568, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 16730001 + ... + 16730307.

It is an arithmetic number, because the mean of its divisors is an integer number (92996904).

Almost surely, 2^5136157278 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5136157278, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6695777088).

5136157278 is an abundant number, since it is smaller than the sum of its proper divisors (8255396898).

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

5136157278 is a wasteful number, since it uses less digits than its factorization.

5136157278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619 (or 593 counting only the distinct ones).

The product of its digits is 352800, while the sum is 45.

The square root of 5136157278 is about 71666.9887605165. The cubic root of 5136157278 is about 1725.3588586733.

The spelling of 5136157278 in words is "five billion, one hundred thirty-six million, one hundred fifty-seven thousand, two hundred seventy-eight".