36840405387 has 4 divisors (see below), whose sum is σ = 49120540520. Its totient is φ = 24560270256.

The previous prime is 36840405377. The next prime is 36840405397. The reversal of 36840405387 is 78350404863.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (36840405377) and next prime (36840405397).

It is not a de Polignac number, because 36840405387 - 2¹¹ = 36840403339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36840405377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6140067562 + ... + 6140067567.

It is an arithmetic number, because the mean of its divisors is an integer number (12280135130).

Almost surely, 2^36840405387 is an apocalyptic number.

36840405387 is a deficient number, since it is larger than the sum of its proper divisors (12280135133).

36840405387 is a wasteful number, since it uses less digits than its factorization.

36840405387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12280135132.

The product of its (nonzero) digits is 1935360, while the sum is 48.

The spelling of 36840405387 in words is "thirty-six billion, eight hundred forty million, four hundred five thousand, three hundred eighty-seven".