36240720785 has 32 divisors (see below), whose sum is σ = 46351595520. Its totient is φ = 27107232768.

The previous prime is 36240720781. The next prime is 36240720809. The reversal of 36240720785 is 58702704263.

It is not a de Polignac number, because 36240720785 - 2² = 36240720781 is a prime.

It is not an unprimeable number, because it can be changed into a prime (36240720781) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9403919 + ... + 9407771.

It is an arithmetic number, because the mean of its divisors is an integer number (1448487360).

Almost surely, 2^36240720785 is an apocalyptic number.

It is an amenable number.

36240720785 is a deficient number, since it is larger than the sum of its proper divisors (10110874735).

36240720785 is a wasteful number, since it uses less digits than its factorization.

36240720785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4577.

The product of its (nonzero) digits is 564480, while the sum is 44.

The spelling of 36240720785 in words is "thirty-six billion, two hundred forty million, seven hundred twenty thousand, seven hundred eighty-five".