28293817651064 has 32 divisors (see below), whose sum is σ = 60629812860000. Its totient is φ = 12125881128960.

The previous prime is 28293817651049. The next prime is 28293817651091. The reversal of 28293817651064 is 46015671839282.

It is a junction number, because it is equal to n+sod(n) for n = 28293817650988 and 28293817651006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20918204 + ... + 22229684.

It is an arithmetic number, because the mean of its divisors is an integer number (1894681651875).

It is a 1-persistent number, because it is pandigital, but 2⋅28293817651064 = 56587635302128 is not.

Almost surely, 2^{28293817651064} is an apocalyptic number.

It is an amenable number.

28293817651064 is an abundant number, since it is smaller than the sum of its proper divisors (32335995208936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28293817651064 is a wasteful number, since it uses less digits than its factorization.

28293817651064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1696743 (or 1696739 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 62.

The spelling of 28293817651064 in words is "twenty-eight trillion, two hundred ninety-three billion, eight hundred seventeen million, six hundred fifty-one thousand, sixty-four".