28739191304 has 32 divisors (see below), whose sum is σ = 56734716000. Its totient is φ = 13610270592.

The previous prime is 28739191277. The next prime is 28739191321. The reversal of 28739191304 is 40319193782.

It is a super-2 number, since 2×28739191304² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 758687 + ... + 795665.

It is an arithmetic number, because the mean of its divisors is an integer number (1772959875).

Almost surely, 2^28739191304 is an apocalyptic number.

It is an amenable number.

28739191304 is a deficient number, since it is larger than the sum of its proper divisors (27995524696).

28739191304 is a wasteful number, since it uses less digits than its factorization.

28739191304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42117 (or 42113 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 47.

The spelling of 28739191304 in words is "twenty-eight billion, seven hundred thirty-nine million, one hundred ninety-one thousand, three hundred four".