36012291840 has 432 divisors, whose sum is σ = 144752776896. Its totient is φ = 8095334400.

The previous prime is 36012291787. The next prime is 36012291851. The reversal of 36012291840 is 4819221063.

36012291840 is a `hidden beast` number, since 3 + 601 + 2 + 2 + 9 + 1 + 8 + 40 = 666.

36012291840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 36012291795 and 36012291804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4915380 + ... + 4922700.

Almost surely, 2^36012291840 is an apocalyptic number.

36012291840 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36012291840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72376388448).

36012291840 is an abundant number, since it is smaller than the sum of its proper divisors (108740485056).

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

36012291840 is a wasteful number, since it uses less digits than its factorization.

36012291840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7416 (or 7399 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The spelling of 36012291840 in words is "thirty-six billion, twelve million, two hundred ninety-one thousand, eight hundred forty".