1628268148044 has 36 divisors (see below), whose sum is σ = 4118557315600. Its totient is φ = 542405639520.

The previous prime is 1628268147973. The next prime is 1628268148063. The reversal of 1628268148044 is 4408418628261.

1628268148044 is a `hidden beast` number, since 1 + 6 + 2 + 82 + 6 + 81 + 480 + 4 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14543872 + ... + 14655399.

Almost surely, 2^{1628268148044} is an apocalyptic number.

It is an amenable number.

1628268148044 is an abundant number, since it is smaller than the sum of its proper divisors (2490289167556).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1628268148044 is a wasteful number, since it uses less digits than its factorization.

1628268148044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29200830 (or 29200825 counting only the distinct ones).

The product of its (nonzero) digits is 4718592, while the sum is 54.

The spelling of 1628268148044 in words is "one trillion, six hundred twenty-eight billion, two hundred sixty-eight million, one hundred forty-eight thousand, forty-four".