1352506720765 has 32 divisors (see below), whose sum is σ = 1683892810080. Its totient is φ = 1041638621184.

The previous prime is 1352506720727. The next prime is 1352506720777. The reversal of 1352506720765 is 5670276052531.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 19262386521 + 1333244334244 = 138789^2 + 1154662^2 .

It is a cyclic number.

It is not a de Polignac number, because 1352506720765 - 2²⁵ = 1352473166333 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73364989 + ... + 73383421.

It is an arithmetic number, because the mean of its divisors is an integer number (52621650315).

Almost surely, 2^{1352506720765} is an apocalyptic number.

It is an amenable number.

1352506720765 is a deficient number, since it is larger than the sum of its proper divisors (331386089315).

1352506720765 is a wasteful number, since it uses less digits than its factorization.

1352506720765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19921.

The product of its (nonzero) digits is 2646000, while the sum is 49.

The spelling of 1352506720765 in words is "one trillion, three hundred fifty-two billion, five hundred six million, seven hundred twenty thousand, seven hundred sixty-five".