1263103894080 has 672 divisors, whose sum is σ = 5274651782400. Its totient is φ = 270995963904.

The previous prime is 1263103894067. The next prime is 1263103894121. The reversal of 1263103894080 is 804983013621.

1263103894080 is a `hidden beast` number, since 1 + 2 + 63 + 103 + 89 + 408 + 0 = 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 (45).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 41736234 + ... + 41766486.

It is an arithmetic number, because the mean of its divisors is an integer number (7849184200).

Almost surely, 2^{1263103894080} is an apocalyptic number.

1263103894080 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 1263103894080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2637325891200).

1263103894080 is an abundant number, since it is smaller than the sum of its proper divisors (4011547888320).

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

1263103894080 is a wasteful number, since it uses less digits than its factorization.

1263103894080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30411 (or 30398 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 1263103894080 in words is "one trillion, two hundred sixty-three billion, one hundred three million, eight hundred ninety-four thousand, eighty".