28730861374 has 16 divisors (see below), whose sum is σ = 43639786080. Its totient is φ = 14185029600.

The previous prime is 28730861371. The next prime is 28730861389. The reversal of 28730861374 is 47316803782.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28730861371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115314 + ... + 266005.

It is an arithmetic number, because the mean of its divisors is an integer number (2727486630).

Almost surely, 2^28730861374 is an apocalyptic number.

28730861374 is a deficient number, since it is larger than the sum of its proper divisors (14908924706).

28730861374 is a wasteful number, since it uses less digits than its factorization.

28730861374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381795.

The product of its (nonzero) digits is 1354752, while the sum is 49.

The spelling of 28730861374 in words is "twenty-eight billion, seven hundred thirty million, eight hundred sixty-one thousand, three hundred seventy-four".