1394372880000 has 560 divisors, whose sum is σ = 5204643082650. Its totient is φ = 371817216000.

The previous prime is 1394372879993. The next prime is 1394372880053. The reversal of 1394372880000 is 882734931.

1394372880000 is a `hidden beast` number, since 139 + 437 + 2 + 8 + 80 + 0 + 0 + 0 = 666.

It can be written as a sum of positive squares in 5 ways, for example, as 35395154496 + 1358977725504 = 188136^2 + 1165752^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 69 ways as a sum of consecutive naturals, for example, 58308046 + ... + 58331954.

Almost surely, 2^{1394372880000} is an apocalyptic number.

1394372880000 is a gapful number since it is divisible by the number (10) 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 1394372880000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2602321541325).

1394372880000 is an abundant number, since it is smaller than the sum of its proper divisors (3810270202650).

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

1394372880000 is an frugal number, since it uses more digits than its factorization.

1394372880000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23961 (or 23919 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 1394372880000 in words is "one trillion, three hundred ninety-four billion, three hundred seventy-two million, eight hundred eighty thousand".