28607378254 has 48 divisors (see below), whose sum is σ = 54638127936. Its totient is φ = 11131646400.

The previous prime is 28607378249. The next prime is 28607378273. The reversal of 28607378254 is 45287370682.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 106342 + ... + 261769.

It is an arithmetic number, because the mean of its divisors is an integer number (1138294332).

Almost surely, 2^28607378254 is an apocalyptic number.

28607378254 is a deficient number, since it is larger than the sum of its proper divisors (26030749682).

28607378254 is a wasteful number, since it uses less digits than its factorization.

28607378254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368201 (or 368194 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 52.

The spelling of 28607378254 in words is "twenty-eight billion, six hundred seven million, three hundred seventy-eight thousand, two hundred fifty-four".