306978987913 has 8 divisors (see below), whose sum is σ = 335526977408. Its totient is φ = 279135887184.

The previous prime is 306978987883. The next prime is 306978988003. The reversal of 306978987913 is 319789879603.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 306978987913 - 2¹³ = 306978979721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (306978987013) 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, 176221281 + ... + 176223022.

It is an arithmetic number, because the mean of its divisors is an integer number (41940872176).

Almost surely, 2^306978987913 is an apocalyptic number.

It is an amenable number.

306978987913 is a deficient number, since it is larger than the sum of its proper divisors (28547989495).

306978987913 is a wasteful number, since it uses less digits than its factorization.

306978987913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352444383.

The product of its (nonzero) digits is 123451776, while the sum is 70.

The spelling of 306978987913 in words is "three hundred six billion, nine hundred seventy-eight million, nine hundred eighty-seven thousand, nine hundred thirteen".