28551654739 has 8 divisors (see below), whose sum is σ = 29813156352. Its totient is φ = 27291830280.

The previous prime is 28551654731. The next prime is 28551654757. The reversal of 28551654739 is 93745615582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28551654739 - 2³ = 28551654731 is a prime.

It is a super-2 number, since 2×28551654739² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28551654739.

It is not an unprimeable number, because it can be changed into a prime (28551654731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384427 + ... + 452644.

It is an arithmetic number, because the mean of its divisors is an integer number (3726644544).

Almost surely, 2^28551654739 is an apocalyptic number.

28551654739 is a deficient number, since it is larger than the sum of its proper divisors (1261501613).

28551654739 is a wasteful number, since it uses less digits than its factorization.

28551654739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838577.

The product of its digits is 9072000, while the sum is 55.

The spelling of 28551654739 in words is "twenty-eight billion, five hundred fifty-one million, six hundred fifty-four thousand, seven hundred thirty-nine".