1261466240470 has 64 divisors (see below), whose sum is σ = 2360496660480. Its totient is φ = 484854595200.

The previous prime is 1261466240467. The next prime is 1261466240537. The reversal of 1261466240470 is 740426641621.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56026515 + ... + 56049025.

It is an arithmetic number, because the mean of its divisors is an integer number (36882760320).

Almost surely, 2^{1261466240470} is an apocalyptic number.

1261466240470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1261466240470 is a deficient number, since it is larger than the sum of its proper divisors (1099030420010).

1261466240470 is a wasteful number, since it uses less digits than its factorization.

1261466240470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23821.

The product of its (nonzero) digits is 387072, while the sum is 43.

The spelling of 1261466240470 in words is "one trillion, two hundred sixty-one billion, four hundred sixty-six million, two hundred forty thousand, four hundred seventy".