28601460031447 has 4 divisors (see below), whose sum is σ = 28737011974936. Its totient is φ = 28465908087960.

The previous prime is 28601460031429. The next prime is 28601460031643. The reversal of 28601460031447 is 74413006410682.

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

It is a cyclic number.

It is not a de Polignac number, because 28601460031447 - 2²⁷ = 28601325813719 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28601460031397 and 28601460031406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28601460031847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67775971428 + ... + 67775971849.

It is an arithmetic number, because the mean of its divisors is an integer number (7184252993734).

Almost surely, 2^{28601460031447} is an apocalyptic number.

28601460031447 is a deficient number, since it is larger than the sum of its proper divisors (135551943489).

28601460031447 is a wasteful number, since it uses less digits than its factorization.

28601460031447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135551943488.

The product of its (nonzero) digits is 774144, while the sum is 46.

The spelling of 28601460031447 in words is "twenty-eight trillion, six hundred one billion, four hundred sixty million, thirty-one thousand, four hundred forty-seven".