36640695398 has 4 divisors (see below), whose sum is σ = 54961043100. Its totient is φ = 18320347698.

The previous prime is 36640695397. The next prime is 36640695419. The reversal of 36640695398 is 89359604663.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36640695397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9160173848 + ... + 9160173851.

It is an arithmetic number, because the mean of its divisors is an integer number (13740260775).

Almost surely, 2^36640695398 is an apocalyptic number.

36640695398 is a deficient number, since it is larger than the sum of its proper divisors (18320347702).

36640695398 is a wasteful number, since it uses less digits than its factorization.

36640695398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18320347701.

The product of its (nonzero) digits is 25194240, while the sum is 59.

The spelling of 36640695398 in words is "thirty-six billion, six hundred forty million, six hundred ninety-five thousand, three hundred ninety-eight".