1445737456513 has 8 divisors (see below), whose sum is σ = 1652535919232. Its totient is φ = 1239005128896.

The previous prime is 1445737456511. The next prime is 1445737456561. The reversal of 1445737456513 is 3156547375441.

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 1445737456513 - 2¹ = 1445737456511 is a prime.

It is a super-2 number, since 2×1445737456513² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1445737456511) 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, 16486920 + ... + 16574377.

It is an arithmetic number, because the mean of its divisors is an integer number (206566989904).

Almost surely, 2^{1445737456513} is an apocalyptic number.

It is an amenable number.

1445737456513 is a deficient number, since it is larger than the sum of its proper divisors (206798462719).

1445737456513 is an equidigital number, since it uses as much as digits as its factorization.

1445737456513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33067551.

The product of its digits is 21168000, while the sum is 55.

The spelling of 1445737456513 in words is "one trillion, four hundred forty-five billion, seven hundred thirty-seven million, four hundred fifty-six thousand, five hundred thirteen".