28728601431430 has 64 divisors (see below), whose sum is σ = 54088131594240. Its totient is φ = 10972647189504.

The previous prime is 28728601431427. The next prime is 28728601431433. The reversal of 28728601431430 is 3413410682782.

It is an interprime number because it is at equal distance from previous prime (28728601431427) and next prime (28728601431433).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28728601431433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10281732 + ... + 12773848.

It is an arithmetic number, because the mean of its divisors is an integer number (845127056160).

Almost surely, 2^{28728601431430} is an apocalyptic number.

28728601431430 is a deficient number, since it is larger than the sum of its proper divisors (25359530162810).

28728601431430 is a wasteful number, since it uses less digits than its factorization.

28728601431430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2492593.

The product of its (nonzero) digits is 1548288, while the sum is 49.

The spelling of 28728601431430 in words is "twenty-eight trillion, seven hundred twenty-eight billion, six hundred one million, four hundred thirty-one thousand, four hundred thirty".