30870487680 has 128 divisors (see below), whose sum is σ = 104188006080. Its totient is φ = 7747878912.

The previous prime is 30870487639. The next prime is 30870487723. The reversal of 30870487680 is 8678407803.

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 (51).

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, 440254 + ... + 505533.

Almost surely, 2^30870487680 is an apocalyptic number.

30870487680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30870487680 is an abundant number, since it is smaller than the sum of its proper divisors (73317518400).

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

30870487680 is a wasteful number, since it uses less digits than its factorization.

30870487680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945826 (or 945814 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 51.

The spelling of 30870487680 in words is "thirty billion, eight hundred seventy million, four hundred eighty-seven thousand, six hundred eighty".