36439487420 has 384 divisors, whose sum is σ = 100475375616. Its totient is φ = 10809114624.

The previous prime is 36439487411. The next prime is 36439487423. The reversal of 36439487420 is 2478493463.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36439487423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 265981592 + ... + 265981728.

It is an arithmetic number, because the mean of its divisors is an integer number (261654624).

Almost surely, 2^36439487420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36439487420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50237687808).

36439487420 is an abundant number, since it is smaller than the sum of its proper divisors (64035888196).

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

36439487420 is a wasteful number, since it uses less digits than its factorization.

36439487420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349 (or 347 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 50.

The spelling of 36439487420 in words is "thirty-six billion, four hundred thirty-nine million, four hundred eighty-seven thousand, four hundred twenty".