1268720710 has 128 divisors (see below), whose sum is σ = 2664990720. Its totient is φ = 431929344.

The previous prime is 1268720701. The next prime is 1268720737. The reversal of 1268720710 is 170278621.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7597047 + ... + 7597213.

It is an arithmetic number, because the mean of its divisors is an integer number (20820240).

Almost surely, 2^1268720710 is an apocalyptic number.

1268720710 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1268720710 is an abundant number, since it is smaller than the sum of its proper divisors (1396270010).

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

1268720710 is a wasteful number, since it uses less digits than its factorization.

1268720710 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310.

The product of its (nonzero) digits is 9408, while the sum is 34.

The square root of 1268720710 is about 35619.1059685669. The cubic root of 1268720710 is about 1082.5683927581.

The spelling of 1268720710 in words is "one billion, two hundred sixty-eight million, seven hundred twenty thousand, seven hundred ten".