1263387495930 has 128 divisors (see below), whose sum is σ = 3524968654848. Its totient is φ = 283820689152.

The previous prime is 1263387495917. The next prime is 1263387495983. The reversal of 1263387495930 is 395947833621.

It is a super-2 number, since 2×1263387495930² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6131664 + ... + 6334356.

It is an arithmetic number, because the mean of its divisors is an integer number (27538817616).

It is a 1-persistent number, because it is pandigital, but 2⋅1263387495930 = 2526774991860 is not.

Almost surely, 2^{1263387495930} is an apocalyptic number.

1263387495930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1263387495930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1762484327424).

1263387495930 is an abundant number, since it is smaller than the sum of its proper divisors (2261581158918).

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

1263387495930 is a wasteful number, since it uses less digits than its factorization.

1263387495930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203220.

The product of its (nonzero) digits is 29393280, while the sum is 60.

The spelling of 1263387495930 in words is "one trillion, two hundred sixty-three billion, three hundred eighty-seven million, four hundred ninety-five thousand, nine hundred thirty".