5199537861 has 48 divisors (see below), whose sum is σ = 8949657600. Its totient is φ = 2845995264.

The previous prime is 5199537809. The next prime is 5199537979. The reversal of 5199537861 is 1687359915.

5199537861 is a `hidden beast` number, since 519 + 9 + 53 + 78 + 6 + 1 = 666.

It is not a de Polignac number, because 5199537861 - 2¹³ = 5199529669 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5199537798 and 5199537807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5199537061) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 220825 + ... + 243233.

It is an arithmetic number, because the mean of its divisors is an integer number (186451200).

Almost surely, 2^5199537861 is an apocalyptic number.

It is an amenable number.

5199537861 is a deficient number, since it is larger than the sum of its proper divisors (3750119739).

5199537861 is a wasteful number, since it uses less digits than its factorization.

5199537861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22578 (or 22575 counting only the distinct ones).

The product of its digits is 2041200, while the sum is 54.

The square root of 5199537861 is about 72107.8210806567. The cubic root of 5199537861 is about 1732.4268857159.

The spelling of 5199537861 in words is "five billion, one hundred ninety-nine million, five hundred thirty-seven thousand, eight hundred sixty-one".