5436181836 has 60 divisors (see below), whose sum is σ = 14829154032. Its totient is φ = 1733272992.

The previous prime is 5436181823. The next prime is 5436181871. The reversal of 5436181836 is 6381816345.

5436181836 is a `hidden beast` number, since 5 + 436 + 181 + 8 + 36 = 666.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 5436181791 and 5436181800.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 357295 + ... + 372198.

Almost surely, 2^5436181836 is an apocalyptic number.

It is an amenable number.

5436181836 is an abundant number, since it is smaller than the sum of its proper divisors (9392972196).

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

5436181836 is a wasteful number, since it uses less digits than its factorization.

5436181836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729532 (or 729521 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 5436181836 is about 73730.4674880066. The cubic root of 5436181836 is about 1758.3203064634.

The spelling of 5436181836 in words is "five billion, four hundred thirty-six million, one hundred eighty-one thousand, eight hundred thirty-six".