386721973330 has 256 divisors, whose sum is σ = 939133440000. Its totient is φ = 113341939200.

The previous prime is 386721973271. The next prime is 386721973361. The reversal of 386721973330 is 33379127683.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 99642990 + ... + 99646870.

It is an arithmetic number, because the mean of its divisors is an integer number (3668490000).

Almost surely, 2^386721973330 is an apocalyptic number.

386721973330 is an abundant number, since it is smaller than the sum of its proper divisors (552411466670).

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

386721973330 is a wasteful number, since it uses less digits than its factorization.

386721973330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4078 (or 4064 counting only the distinct ones).

The product of its (nonzero) digits is 3429216, while the sum is 52.

The spelling of 386721973330 in words is "three hundred eighty-six billion, seven hundred twenty-one million, nine hundred seventy-three thousand, three hundred thirty".