1903379863392 has 864 divisors, whose sum is σ = 7137524459520. Its totient is φ = 495270236160.

The previous prime is 1903379863379. The next prime is 1903379863403. The reversal of 1903379863392 is 2933689733091.

1903379863392 is a `hidden beast` number, since 1 + 90 + 33 + 79 + 8 + 63 + 392 = 666.

It is a tau number, because it is divible by the number of its divisors (864).

It is a super-2 number, since 2×1903379863392² (a number of 25 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 200794909 + ... + 200804387.

It is an arithmetic number, because the mean of its divisors is an integer number (8261023680).

Almost surely, 2^{1903379863392} is an apocalyptic number.

1903379863392 is a gapful number since it is divisible by the number (12) 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 1903379863392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3568762229760).

1903379863392 is an abundant number, since it is smaller than the sum of its proper divisors (5234144596128).

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

1903379863392 is a wasteful number, since it uses less digits than its factorization.

1903379863392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9566 (or 9539 counting only the distinct ones).

The product of its (nonzero) digits is 39680928, while the sum is 63.

The spelling of 1903379863392 in words is "one trillion, nine hundred three billion, three hundred seventy-nine million, eight hundred sixty-three thousand, three hundred ninety-two".