30687808404368 has 10 divisors (see below), whose sum is σ = 59457628783494. Its totient is φ = 15343904202176.

The previous prime is 30687808404367. The next prime is 30687808404427. The reversal of 30687808404368 is 86340480878603.

It can be written as a sum of positive squares in only one way, i.e., 27339010883584 + 3348797520784 = 5228672^2 + 1829972^2 .

It is not an unprimeable number, because it can be changed into a prime (30687808404367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 958994012621 + ... + 958994012652.

Almost surely, 2^{30687808404368} is an apocalyptic number.

It is an amenable number.

30687808404368 is a deficient number, since it is larger than the sum of its proper divisors (28769820379126).

30687808404368 is a wasteful number, since it uses less digits than its factorization.

30687808404368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1917988025281 (or 1917988025275 counting only the distinct ones).

The product of its (nonzero) digits is 148635648, while the sum is 65.

The spelling of 30687808404368 in words is "thirty trillion, six hundred eighty-seven billion, eight hundred eight million, four hundred four thousand, three hundred sixty-eight".