30661995488 has 12 divisors (see below), whose sum is σ = 60365803680. Its totient is φ = 15330997728.

The previous prime is 30661995487. The next prime is 30661995493. The reversal of 30661995488 is 88459916603.

It is a super-2 number, since 2×30661995488² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30661995487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 479093648 + ... + 479093711.

It is an arithmetic number, because the mean of its divisors is an integer number (5030483640).

Almost surely, 2^30661995488 is an apocalyptic number.

It is an amenable number.

30661995488 is a deficient number, since it is larger than the sum of its proper divisors (29703808192).

30661995488 is an equidigital number, since it uses as much as digits as its factorization.

30661995488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958187369 (or 958187361 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 59.

The spelling of 30661995488 in words is "thirty billion, six hundred sixty-one million, nine hundred ninety-five thousand, four hundred eighty-eight".