1263906314650 has 48 divisors (see below), whose sum is σ = 2730748078080. Its totient is φ = 426235377600.

The previous prime is 1263906314647. The next prime is 1263906314659. The reversal of 1263906314650 is 564136093621.

It is a self number, because there is not a number n which added to its sum of digits gives 1263906314650.

It is not an unprimeable number, because it can be changed into a prime (1263906314659) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29578330 + ... + 29621029.

It is an arithmetic number, because the mean of its divisors is an integer number (56890584960).

Almost surely, 2^{1263906314650} is an apocalyptic number.

1263906314650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1263906314650 is an abundant number, since it is smaller than the sum of its proper divisors (1466841763430).

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

1263906314650 is a wasteful number, since it uses less digits than its factorization.

1263906314650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59199439 (or 59199434 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 46.

The spelling of 1263906314650 in words is "one trillion, two hundred sixty-three billion, nine hundred six million, three hundred fourteen thousand, six hundred fifty".