1263385313730 has 48 divisors (see below), whose sum is σ = 3354691227264. Its totient is φ = 329734605600.

The previous prime is 1263385313677. The next prime is 1263385313753. The reversal of 1263385313730 is 373135833621.

1263385313730 is a `hidden beast` number, since 1 + 2 + 633 + 8 + 5 + 3 + 1 + 3 + 7 + 3 + 0 = 666.

It is a super-2 number, since 2×1263385313730² (a number of 25 digits) contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 149332096 + ... + 149340555.

It is an arithmetic number, because the mean of its divisors is an integer number (69889400568).

Almost surely, 2^{1263385313730} is an apocalyptic number.

1263385313730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1263385313730 is an abundant number, since it is smaller than the sum of its proper divisors (2091305913534).

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

1263385313730 is a wasteful number, since it uses less digits than its factorization.

1263385313730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298672711 (or 298672708 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 45.

The spelling of 1263385313730 in words is "one trillion, two hundred sixty-three billion, three hundred eighty-five million, three hundred thirteen thousand, seven hundred thirty".