309045534045 has 16 divisors (see below), whose sum is σ = 494486406720. Its totient is φ = 164819767424.

The previous prime is 309045534043. The next prime is 309045534079. The reversal of 309045534045 is 540435540903.

It is a cyclic number.

It is not a de Polignac number, because 309045534045 - 2¹ = 309045534043 is a prime.

It is a super-2 number, since 2×309045534045² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 309045533988 and 309045534006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (309045534043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 325402 + ... + 850868.

It is an arithmetic number, because the mean of its divisors is an integer number (30905400420).

Almost surely, 2^309045534045 is an apocalyptic number.

It is an amenable number.

309045534045 is a deficient number, since it is larger than the sum of its proper divisors (185440872675).

309045534045 is a wasteful number, since it uses less digits than its factorization.

309045534045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564684.

The product of its (nonzero) digits is 648000, while the sum is 42.

The spelling of 309045534045 in words is "three hundred nine billion, forty-five million, five hundred thirty-four thousand, forty-five".