28749620163 has 8 divisors (see below), whose sum is σ = 41817629376. Its totient is φ = 17424012200.

The previous prime is 28749620153. The next prime is 28749620167. The reversal of 28749620163 is 36102694782.

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 28749620163 - 2¹² = 28749616067 is a prime.

It is a super-2 number, since 2×28749620163² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28749620167) 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, 435600273 + ... + 435600338.

It is an arithmetic number, because the mean of its divisors is an integer number (5227203672).

Almost surely, 2^28749620163 is an apocalyptic number.

28749620163 is a deficient number, since it is larger than the sum of its proper divisors (13068009213).

28749620163 is a wasteful number, since it uses less digits than its factorization.

28749620163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871200625.

The product of its (nonzero) digits is 870912, while the sum is 48.

The spelling of 28749620163 in words is "twenty-eight billion, seven hundred forty-nine million, six hundred twenty thousand, one hundred sixty-three".