28703551468 has 12 divisors (see below), whose sum is σ = 53185992552. Its totient is φ = 13507553600.

The previous prime is 28703551411. The next prime is 28703551489. The reversal of 28703551468 is 86415530782.

It is a happy number.

It is a super-2 number, since 2×28703551468² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211055458 + ... + 211055593.

It is an arithmetic number, because the mean of its divisors is an integer number (4432166046).

Almost surely, 2^28703551468 is an apocalyptic number.

It is an amenable number.

28703551468 is a deficient number, since it is larger than the sum of its proper divisors (24482441084).

28703551468 is a wasteful number, since it uses less digits than its factorization.

28703551468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422111072 (or 422111070 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 49.

The spelling of 28703551468 in words is "twenty-eight billion, seven hundred three million, five hundred fifty-one thousand, four hundred sixty-eight".