28147497671904 has 96 divisors (see below), whose sum is σ = 80875250465184. Its totient is φ = 8518788679680.

The previous prime is 28147497671837. The next prime is 28147497671921. The reversal of 28147497671904 is 40917679474182.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×28147497671904² (a number of 28 digits) contains 22 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184793419 + ... + 184945674.

It is an arithmetic number, because the mean of its divisors is an integer number (842450525679).

Almost surely, 2^{28147497671904} is an apocalyptic number.

28147497671904 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28147497671904 is an abundant number, since it is smaller than the sum of its proper divisors (52727752793280).

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

28147497671904 is a wasteful number, since it uses less digits than its factorization.

28147497671904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369739180 (or 369739172 counting only the distinct ones).

The product of its (nonzero) digits is 170698752, while the sum is 69.

The spelling of 28147497671904 in words is "twenty-eight trillion, one hundred forty-seven billion, four hundred ninety-seven million, six hundred seventy-one thousand, nine hundred four".