36220935997 has 4 divisors (see below), whose sum is σ = 37469933820. Its totient is φ = 34971938176.

The previous prime is 36220935973. The next prime is 36220936009. The reversal of 36220935997 is 79953902263.

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: 79953902263 = 9941 ⋅8042843.

It can be written as a sum of positive squares in 2 ways, for example, as 12218870521 + 24002065476 = 110539^2 + 154926^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36220935997 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 (36220935397) 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, 624498868 + ... + 624498925.

It is an arithmetic number, because the mean of its divisors is an integer number (9367483455).

Almost surely, 2^36220935997 is an apocalyptic number.

It is an amenable number.

36220935997 is a deficient number, since it is larger than the sum of its proper divisors (1248997823).

36220935997 is a wasteful number, since it uses less digits than its factorization.

36220935997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1248997822.

The product of its (nonzero) digits is 5511240, while the sum is 55.

The spelling of 36220935997 in words is "thirty-six billion, two hundred twenty million, nine hundred thirty-five thousand, nine hundred ninety-seven".