28648712263555 has 16 divisors (see below), whose sum is σ = 34554587959584. Its totient is φ = 22801630682880.

The previous prime is 28648712263553. The next prime is 28648712263583. The reversal of 28648712263555 is 55536221784682.

It is a happy number.

It is not a de Polignac number, because 28648712263555 - 2¹ = 28648712263553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28648712263553) 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, 2427292 + ... + 7949161.

It is an arithmetic number, because the mean of its divisors is an integer number (2159661747474).

Almost surely, 2^{28648712263555} is an apocalyptic number.

28648712263555 is a deficient number, since it is larger than the sum of its proper divisors (5905875696029).

28648712263555 is a wasteful number, since it uses less digits than its factorization.

28648712263555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10379286.

The product of its digits is 193536000, while the sum is 64.

The spelling of 28648712263555 in words is "twenty-eight trillion, six hundred forty-eight billion, seven hundred twelve million, two hundred sixty-three thousand, five hundred fifty-five".