1393052644537 has 8 divisors (see below), whose sum is σ = 1402408151496. Its totient is φ = 1383720210432.

The previous prime is 1393052644471. The next prime is 1393052644549. The reversal of 1393052644537 is 7354462503931.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 95628841 + 1392957015696 = 9779^2 + 1180236^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1393052644537 - 2⁷ = 1393052644409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1393052644597) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5647048 + ... + 5888569.

It is an arithmetic number, because the mean of its divisors is an integer number (175301018937).

Almost surely, 2^{1393052644537} is an apocalyptic number.

It is an amenable number.

1393052644537 is a deficient number, since it is larger than the sum of its proper divisors (9355506959).

1393052644537 is a wasteful number, since it uses less digits than its factorization.

1393052644537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11536427.

The product of its (nonzero) digits is 8164800, while the sum is 52.

The spelling of 1393052644537 in words is "one trillion, three hundred ninety-three billion, fifty-two million, six hundred forty-four thousand, five hundred thirty-seven".