36939109247 has 4 divisors (see below), whose sum is σ = 37384158840. Its totient is φ = 36494059656.

The previous prime is 36939109241. The next prime is 36939109253. The reversal of 36939109247 is 74290193963.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74290193963 = 255071 ⋅291253.

It is an interprime number because it is at equal distance from previous prime (36939109241) and next prime (36939109253).

It is a cyclic number.

It is not a de Polignac number, because 36939109247 - 2²⁰ = 36938060671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36939109241) 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, 222524672 + ... + 222524837.

It is an arithmetic number, because the mean of its divisors is an integer number (9346039710).

Almost surely, 2^36939109247 is an apocalyptic number.

36939109247 is a deficient number, since it is larger than the sum of its proper divisors (445049593).

36939109247 is an equidigital number, since it uses as much as digits as its factorization.

36939109247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445049592.

The product of its (nonzero) digits is 2204496, while the sum is 53.

The spelling of 36939109247 in words is "thirty-six billion, nine hundred thirty-nine million, one hundred nine thousand, two hundred forty-seven".