28347550337 has 16 divisors (see below), whose sum is σ = 30203150400. Its totient is φ = 26513057280.

The previous prime is 28347550313. The next prime is 28347550349. The reversal of 28347550337 is 73305574382.

It is a cyclic number.

It is not a de Polignac number, because 28347550337 - 2²⁰ = 28346501761 is a prime.

It is a super-2 number, since 2×28347550337² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28347550291 and 28347550300.

It is not an unprimeable number, because it can be changed into a prime (28347550537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7212989 + ... + 7216917.

It is an arithmetic number, because the mean of its divisors is an integer number (1887696900).

Almost surely, 2^28347550337 is an apocalyptic number.

It is an amenable number.

28347550337 is a deficient number, since it is larger than the sum of its proper divisors (1855600063).

28347550337 is a wasteful number, since it uses less digits than its factorization.

28347550337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6496.

The product of its (nonzero) digits is 2116800, while the sum is 47.

The spelling of 28347550337 in words is "twenty-eight billion, three hundred forty-seven million, five hundred fifty thousand, three hundred thirty-seven".