30168497280 has 128 divisors (see below), whose sum is σ = 98398681920. Its totient is φ = 7857819648.

The previous prime is 30168497251. The next prime is 30168497297. The reversal of 30168497280 is 8279486103.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100147 + ... + 265266.

Almost surely, 2^30168497280 is an apocalyptic number.

30168497280 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30168497280 is an abundant number, since it is smaller than the sum of its proper divisors (68230184640).

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

30168497280 is a wasteful number, since it uses less digits than its factorization.

30168497280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365478 (or 365466 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 48.

The spelling of 30168497280 in words is "thirty billion, one hundred sixty-eight million, four hundred ninety-seven thousand, two hundred eighty".