38722755745 has 4 divisors (see below), whose sum is σ = 46467306900. Its totient is φ = 30978204592.

The previous prime is 38722755739. The next prime is 38722755751. The reversal of 38722755745 is 54755722783.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (38722755739) and next prime (38722755751).

It can be written as a sum of positive squares in 2 ways, for example, as 6572831329 + 32149924416 = 81073^2 + 179304^2 .

It is a cyclic number.

It is not a de Polignac number, because 38722755745 - 2⁵ = 38722755713 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3872275570 + ... + 3872275579.

It is an arithmetic number, because the mean of its divisors is an integer number (11616826725).

Almost surely, 2^38722755745 is an apocalyptic number.

It is an amenable number.

38722755745 is a deficient number, since it is larger than the sum of its proper divisors (7744551155).

38722755745 is an equidigital number, since it uses as much as digits as its factorization.

38722755745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7744551154.

The product of its digits is 16464000, while the sum is 55.

The spelling of 38722755745 in words is "thirty-eight billion, seven hundred twenty-two million, seven hundred fifty-five thousand, seven hundred forty-five".