308420663546 has 16 divisors (see below), whose sum is σ = 470533357800. Its totient is φ = 151596242688.

The previous prime is 308420663521. The next prime is 308420663549. The reversal of 308420663546 is 645366024803.

It can be written as a sum of positive squares in 4 ways, for example, as 229369155625 + 79051507921 = 478925^2 + 281161^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 308420663546.

It is not an unprimeable number, because it can be changed into a prime (308420663549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4977011 + ... + 5038598.

Almost surely, 2^308420663546 is an apocalyptic number.

308420663546 is a deficient number, since it is larger than the sum of its proper divisors (162112694254).

308420663546 is a wasteful number, since it uses less digits than its factorization.

308420663546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10015873.

The product of its (nonzero) digits is 2488320, while the sum is 47.

The spelling of 308420663546 in words is "three hundred eight billion, four hundred twenty million, six hundred sixty-three thousand, five hundred forty-six".