1394426714688 has 672 divisors, whose sum is σ = 5002894540800. Its totient is φ = 362282139648.

The previous prime is 1394426714683. The next prime is 1394426714701. The reversal of 1394426714688 is 8864176244931.

1394426714688 is a `hidden beast` number, since 1 + 3 + 9 + 442 + 6 + 71 + 46 + 88 = 666.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1394426714683) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 254501133 + ... + 254506611.

Almost surely, 2^{1394426714688} is an apocalyptic number.

1394426714688 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1394426714688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2501447270400).

1394426714688 is an abundant number, since it is smaller than the sum of its proper divisors (3608467826112).

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

1394426714688 is a wasteful number, since it uses less digits than its factorization.

1394426714688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5647 (or 5634 counting only the distinct ones).

The product of its digits is 55738368, while the sum is 63.

The spelling of 1394426714688 in words is "one trillion, three hundred ninety-four billion, four hundred twenty-six million, seven hundred fourteen thousand, six hundred eighty-eight".