1263752501380 has 48 divisors (see below), whose sum is σ = 2661051609216. Its totient is φ = 504136247040.

The previous prime is 1263752501359. The next prime is 1263752501399. The reversal of 1263752501380 is 831052573621.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17064592 + ... + 17138488.

It is an arithmetic number, because the mean of its divisors is an integer number (55438575192).

Almost surely, 2^{1263752501380} is an apocalyptic number.

1263752501380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1263752501380 is an abundant number, since it is smaller than the sum of its proper divisors (1397299107836).

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

1263752501380 is a wasteful number, since it uses less digits than its factorization.

1263752501380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76204 (or 76202 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 43.

The spelling of 1263752501380 in words is "one trillion, two hundred sixty-three billion, seven hundred fifty-two million, five hundred one thousand, three hundred eighty".