306689137043532 has 12 divisors (see below), whose sum is σ = 715607986434936. Its totient is φ = 102229712347840.

The previous prime is 306689137043467. The next prime is 306689137043579. The reversal of 306689137043532 is 235340731986603.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12778714043469 + ... + 12778714043492.

It is an arithmetic number, because the mean of its divisors is an integer number (59633998869578).

It is a 1-persistent number, because it is pandigital, but 2⋅306689137043532 = 613378274087064 is not.

Almost surely, 2^{306689137043532} is an apocalyptic number.

It is an amenable number.

306689137043532 is an abundant number, since it is smaller than the sum of its proper divisors (408918849391404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

306689137043532 is a wasteful number, since it uses less digits than its factorization.

306689137043532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25557428086968 (or 25557428086966 counting only the distinct ones).

The product of its (nonzero) digits is 58786560, while the sum is 60.

The spelling of 306689137043532 in words is "three hundred six trillion, six hundred eighty-nine billion, one hundred thirty-seven million, forty-three thousand, five hundred thirty-two".