36273990561 has 4 divisors (see below), whose sum is σ = 48365320752. Its totient is φ = 24182660372.

The previous prime is 36273990539. The next prime is 36273990617. The reversal of 36273990561 is 16509937263.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 36273990561 - 2¹³ = 36273982369 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (36273991561) 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, 6045665091 + ... + 6045665096.

It is an arithmetic number, because the mean of its divisors is an integer number (12091330188).

Almost surely, 2^36273990561 is an apocalyptic number.

It is an amenable number.

36273990561 is a deficient number, since it is larger than the sum of its proper divisors (12091330191).

36273990561 is a wasteful number, since it uses less digits than its factorization.

36273990561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12091330190.

The product of its (nonzero) digits is 1837080, while the sum is 51.

The spelling of 36273990561 in words is "thirty-six billion, two hundred seventy-three million, nine hundred ninety thousand, five hundred sixty-one".