309494069652 has 24 divisors (see below), whose sum is σ = 722161967296. Its totient is φ = 103163384448.

The previous prime is 309494069641. The next prime is 309494069657. The reversal of 309494069652 is 256960494903.

It is a super-2 number, since 2×309494069652² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 309494069592 and 309494069601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (309494069657) 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, 1515033 + ... + 1707135.

Almost surely, 2^309494069652 is an apocalyptic number.

It is an amenable number.

309494069652 is an abundant number, since it is smaller than the sum of its proper divisors (412667897644).

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

309494069652 is a wasteful number, since it uses less digits than its factorization.

309494069652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326367 (or 326365 counting only the distinct ones).

The product of its (nonzero) digits is 12597120, while the sum is 57.

The spelling of 309494069652 in words is "three hundred nine billion, four hundred ninety-four million, sixty-nine thousand, six hundred fifty-two".