128262237018445 has 16 divisors (see below), whose sum is σ = 153952979808240. Its totient is φ = 102584262426624.

The previous prime is 128262237018389. The next prime is 128262237018491. The reversal of 128262237018445 is 544810732262821.

It can be written as a sum of positive squares in 8 ways, for example, as 828076340169 + 127434160678276 = 909987^2 + 11288674^2 .

It is a cyclic number.

It is not a de Polignac number, because 128262237018445 - 2²³ = 128262228629837 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 349845949 + ... + 350212381.

It is an arithmetic number, because the mean of its divisors is an integer number (9622061238015).

Almost surely, 2^{128262237018445} is an apocalyptic number.

It is an amenable number.

128262237018445 is a deficient number, since it is larger than the sum of its proper divisors (25690742789795).

128262237018445 is a wasteful number, since it uses less digits than its factorization.

128262237018445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383664.

The product of its (nonzero) digits is 10321920, while the sum is 55.

The spelling of 128262237018445 in words is "one hundred twenty-eight trillion, two hundred sixty-two billion, two hundred thirty-seven million, eighteen thousand, four hundred forty-five".