1400328976128 has 144 divisors (see below), whose sum is σ = 3777463141536. Its totient is φ = 460479283200.

The previous prime is 1400328976127. The next prime is 1400328976147. The reversal of 1400328976128 is 8216798230041.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400328976127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21453750 + ... + 21518922.

Almost surely, 2^{1400328976128} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1400328976128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1888731570768).

1400328976128 is an abundant number, since it is smaller than the sum of its proper divisors (2377134165408).

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

1400328976128 is a wasteful number, since it uses less digits than its factorization.

1400328976128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65570 (or 65556 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 51.

The spelling of 1400328976128 in words is "one trillion, four hundred billion, three hundred twenty-eight million, nine hundred seventy-six thousand, one hundred twenty-eight".