30699427540 has 24 divisors (see below), whose sum is σ = 64672182792. Its totient is φ = 12241031040.

The previous prime is 30699427529. The next prime is 30699427541. The reversal of 30699427540 is 4572499603.

It can be written as a sum of positive squares in 4 ways, for example, as 2490209604 + 28209217936 = 49902^2 + 167956^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30699427541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2414751 + ... + 2427430.

It is an arithmetic number, because the mean of its divisors is an integer number (2694674283).

Almost surely, 2^30699427540 is an apocalyptic number.

It is an amenable number.

30699427540 is an abundant number, since it is smaller than the sum of its proper divisors (33972755252).

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

30699427540 is a wasteful number, since it uses less digits than its factorization.

30699427540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4842507 (or 4842505 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 49.

The spelling of 30699427540 in words is "thirty billion, six hundred ninety-nine million, four hundred twenty-seven thousand, five hundred forty".