1378646219700 has 360 divisors, whose sum is σ = 4688866671104. Its totient is φ = 349943328000.

The previous prime is 1378646219681. The next prime is 1378646219723. The reversal of 1378646219700 is 79126468731.

1378646219700 is a `hidden beast` number, since 1 + 3 + 7 + 8 + 6 + 4 + 621 + 9 + 7 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 15272097 + ... + 15362103.

Almost surely, 2^{1378646219700} is an apocalyptic number.

1378646219700 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 1378646219700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2344433335552).

1378646219700 is an abundant number, since it is smaller than the sum of its proper divisors (3310220451404).

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

1378646219700 is a wasteful number, since it uses less digits than its factorization.

1378646219700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90125 (or 90109 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The spelling of 1378646219700 in words is "one trillion, three hundred seventy-eight billion, six hundred forty-six million, two hundred nineteen thousand, seven hundred".