28477539343 has 16 divisors (see below), whose sum is σ = 31224708000. Its totient is φ = 25756922880.

The previous prime is 28477539323. The next prime is 28477539347. The reversal of 28477539343 is 34393577482.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28477539343 is a prime.

It is a super-2 number, since 2×28477539343² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28477539347) 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, 4412583 + ... + 4419031.

It is an arithmetic number, because the mean of its divisors is an integer number (1951544250).

Almost surely, 2^28477539343 is an apocalyptic number.

28477539343 is a deficient number, since it is larger than the sum of its proper divisors (2747168657).

28477539343 is a wasteful number, since it uses less digits than its factorization.

28477539343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8442.

The product of its digits is 15240960, while the sum is 55.

The spelling of 28477539343 in words is "twenty-eight billion, four hundred seventy-seven million, five hundred thirty-nine thousand, three hundred forty-three".