128367431045 has 16 divisors (see below), whose sum is σ = 177604704000. Its totient is φ = 87244410624.

The previous prime is 128367431029. The next prime is 128367431051. The reversal of 128367431045 is 540134763821.

It is a happy number.

It is not a de Polignac number, because 128367431045 - 2⁴ = 128367431029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 128367430987 and 128367431005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16224545 + ... + 16232454.

It is an arithmetic number, because the mean of its divisors is an integer number (11100294000).

Almost surely, 2^128367431045 is an apocalyptic number.

It is an amenable number.

128367431045 is a deficient number, since it is larger than the sum of its proper divisors (49237272955).

128367431045 is a wasteful number, since it uses less digits than its factorization.

128367431045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32457124.

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 128367431045 in words is "one hundred twenty-eight billion, three hundred sixty-seven million, four hundred thirty-one thousand, forty-five".