1399671995904 has 1200 divisors, whose sum is σ = 5288675217408. Its totient is φ = 360694923264.

The previous prime is 1399671995879. The next prime is 1399671995927. The reversal of 1399671995904 is 4095991769931.

1399671995904 is a `hidden beast` number, since 1 + 399 + 67 + 1 + 9 + 95 + 90 + 4 = 666.

It is a super-2 number, since 2×1399671995904² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

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, 2305884369 + ... + 2305884975.

Almost surely, 2^{1399671995904} is an apocalyptic number.

1399671995904 is a gapful number since it is divisible by the number (14) 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 1399671995904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2644337608704).

1399671995904 is an abundant number, since it is smaller than the sum of its proper divisors (3889003221504).

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

1399671995904 is an equidigital number, since it uses as much as digits as its factorization.

1399671995904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717 (or 679 counting only the distinct ones).

The product of its (nonzero) digits is 148803480, while the sum is 72.

The spelling of 1399671995904 in words is "one trillion, three hundred ninety-nine billion, six hundred seventy-one million, nine hundred ninety-five thousand, nine hundred four".