186380994628 has 6 divisors (see below), whose sum is σ = 326166740606. Its totient is φ = 93190497312.

The previous prime is 186380994617. The next prime is 186380994647. The reversal of 186380994628 is 826499083681.

It can be written as a sum of positive squares in only one way, i.e., 100788470784 + 85592523844 = 317472^2 + 292562^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 186380994628.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23297624325 + ... + 23297624332.

Almost surely, 2^186380994628 is an apocalyptic number.

It is an amenable number.

186380994628 is a deficient number, since it is larger than the sum of its proper divisors (139785745978).

186380994628 is a wasteful number, since it uses less digits than its factorization.

186380994628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46595248661 (or 46595248659 counting only the distinct ones).

The product of its (nonzero) digits is 35831808, while the sum is 64.

The spelling of 186380994628 in words is "one hundred eighty-six billion, three hundred eighty million, nine hundred ninety-four thousand, six hundred twenty-eight".