28714649613 has 32 divisors (see below), whose sum is σ = 41572352640. Its totient is φ = 17524926720.

The previous prime is 28714649591. The next prime is 28714649659. The reversal of 28714649613 is 31694641782.

It is a happy number.

It is not a de Polignac number, because 28714649613 - 2⁹ = 28714649101 is a prime.

It is a super-2 number, since 2×28714649613² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28714647613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2669995 + ... + 2680727.

It is an arithmetic number, because the mean of its divisors is an integer number (1299136020).

Almost surely, 2^28714649613 is an apocalyptic number.

It is an amenable number.

28714649613 is a deficient number, since it is larger than the sum of its proper divisors (12857703027).

28714649613 is a wasteful number, since it uses less digits than its factorization.

28714649613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11309.

The product of its digits is 1741824, while the sum is 51.

The spelling of 28714649613 in words is "twenty-eight billion, seven hundred fourteen million, six hundred forty-nine thousand, six hundred thirteen".