1232406636378 has 16 divisors (see below), whose sum is σ = 2468658542976. Its totient is φ = 410161333760.

The previous prime is 1232406636361. The next prime is 1232406636389. The reversal of 1232406636378 is 8736366042321.

It is a super-2 number, since 2×1232406636378² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1232406636378.

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, 160215426 + ... + 160223117.

It is an arithmetic number, because the mean of its divisors is an integer number (154291158936).

Almost surely, 2^{1232406636378} is an apocalyptic number.

1232406636378 is an abundant number, since it is smaller than the sum of its proper divisors (1236251906598).

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

1232406636378 is a wasteful number, since it uses less digits than its factorization.

1232406636378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320439189.

The product of its (nonzero) digits is 5225472, while the sum is 51.

The spelling of 1232406636378 in words is "one trillion, two hundred thirty-two billion, four hundred six million, six hundred thirty-six thousand, three hundred seventy-eight".