28496758646 has 4 divisors (see below), whose sum is σ = 42745137972. Its totient is φ = 14248379322.

The previous prime is 28496758637. The next prime is 28496758663. The reversal of 28496758646 is 64685769482.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×28496758646³ (a number of 32 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7124189660 + ... + 7124189663.

It is an arithmetic number, because the mean of its divisors is an integer number (10686284493).

Almost surely, 2^28496758646 is an apocalyptic number.

28496758646 is a deficient number, since it is larger than the sum of its proper divisors (14248379326).

28496758646 is a wasteful number, since it uses less digits than its factorization.

28496758646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14248379325.

The product of its digits is 139345920, while the sum is 65.

The spelling of 28496758646 in words is "twenty-eight billion, four hundred ninety-six million, seven hundred fifty-eight thousand, six hundred forty-six".