30681869536 has 12 divisors (see below), whose sum is σ = 60404930712. Its totient is φ = 15340934752.

The previous prime is 30681869509. The next prime is 30681869549. The reversal of 30681869536 is 63596818603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 479404180 + ... + 479404243.

It is an arithmetic number, because the mean of its divisors is an integer number (5033744226).

Almost surely, 2^30681869536 is an apocalyptic number.

It is an amenable number.

30681869536 is a deficient number, since it is larger than the sum of its proper divisors (29723061176).

30681869536 is an equidigital number, since it uses as much as digits as its factorization.

30681869536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958808433 (or 958808425 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 55.

The spelling of 30681869536 in words is "thirty billion, six hundred eighty-one million, eight hundred sixty-nine thousand, five hundred thirty-six".