1268470820500 has 72 divisors (see below), whose sum is σ = 2999836115640. Its totient is φ = 468358425600.

The previous prime is 1268470820473. The next prime is 1268470820537. The reversal of 1268470820500 is 50280748621.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 1180477904004 + 87992916496 = 1086498^2 + 296636^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7421245 + ... + 7590244.

It is an arithmetic number, because the mean of its divisors is an integer number (41664390495).

Almost surely, 2^{1268470820500} is an apocalyptic number.

1268470820500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1268470820500 is an abundant number, since it is smaller than the sum of its proper divisors (1731365295140).

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

1268470820500 is a wasteful number, since it uses less digits than its factorization.

1268470820500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15011534 (or 15011509 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 43.

The spelling of 1268470820500 in words is "one trillion, two hundred sixty-eight billion, four hundred seventy million, eight hundred twenty thousand, five hundred".