28742755366 has 16 divisors (see below), whose sum is σ = 46452688128. Its totient is φ = 13259577600.

The previous prime is 28742755339. The next prime is 28742755373. The reversal of 28742755366 is 66355724782.

It is a super-2 number, since 2×28742755366² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206955 + ... + 316726.

It is an arithmetic number, because the mean of its divisors is an integer number (2903293008).

Almost surely, 2^28742755366 is an apocalyptic number.

28742755366 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28742755366 is a deficient number, since it is larger than the sum of its proper divisors (17709932762).

28742755366 is a wasteful number, since it uses less digits than its factorization.

28742755366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525807.

The product of its digits is 16934400, while the sum is 55.

The spelling of 28742755366 in words is "twenty-eight billion, seven hundred forty-two million, seven hundred fifty-five thousand, three hundred sixty-six".