128431422404 has 6 divisors (see below), whose sum is σ = 224754989214. Its totient is φ = 64215711200.

The previous prime is 128431422389. The next prime is 128431422419. The reversal of 128431422404 is 404224134821.

It is an interprime number because it is at equal distance from previous prime (128431422389) and next prime (128431422419).

It can be written as a sum of positive squares in only one way, i.e., 75163705600 + 53267716804 = 274160^2 + 230798^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16053927797 + ... + 16053927804.

It is an arithmetic number, because the mean of its divisors is an integer number (37459164869).

Almost surely, 2^128431422404 is an apocalyptic number.

It is an amenable number.

128431422404 is a deficient number, since it is larger than the sum of its proper divisors (96323566810).

128431422404 is a wasteful number, since it uses less digits than its factorization.

128431422404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32107855605 (or 32107855603 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 35.

The spelling of 128431422404 in words is "one hundred twenty-eight billion, four hundred thirty-one million, four hundred twenty-two thousand, four hundred four".