28506834753430 has 32 divisors (see below), whose sum is σ = 55977370824960. Its totient is φ = 10366063674720.

The previous prime is 28506834753407. The next prime is 28506834753431. The reversal of 28506834753430 is 3435743860582.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28506834753431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22315677 + ... + 23558503.

It is an arithmetic number, because the mean of its divisors is an integer number (1749292838280).

Almost surely, 2^{28506834753430} is an apocalyptic number.

28506834753430 is a deficient number, since it is larger than the sum of its proper divisors (27470536071530).

28506834753430 is a wasteful number, since it uses less digits than its factorization.

28506834753430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1451364.

The product of its (nonzero) digits is 58060800, while the sum is 58.

The spelling of 28506834753430 in words is "twenty-eight trillion, five hundred six billion, eight hundred thirty-four million, seven hundred fifty-three thousand, four hundred thirty".