128948760145 has 8 divisors (see below), whose sum is σ = 163840777704. Its totient is φ = 97090831104.

The previous prime is 128948760139. The next prime is 128948760181. The reversal of 128948760145 is 541067849821.

It can be written as a sum of positive squares in 4 ways, for example, as 28023094801 + 100925665344 = 167401^2 + 317688^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 128948760145 - 2²³ = 128940371537 is a prime.

It is a Duffinian 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, 758522034 + ... + 758522203.

It is an arithmetic number, because the mean of its divisors is an integer number (20480097213).

Almost surely, 2^128948760145 is an apocalyptic number.

It is an amenable number.

128948760145 is a deficient number, since it is larger than the sum of its proper divisors (34892017559).

128948760145 is a wasteful number, since it uses less digits than its factorization.

128948760145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1517044259.

The product of its (nonzero) digits is 3870720, while the sum is 55.

The spelling of 128948760145 in words is "one hundred twenty-eight billion, nine hundred forty-eight million, seven hundred sixty thousand, one hundred forty-five".