30217030780 has 12 divisors (see below), whose sum is σ = 63455764680. Its totient is φ = 12086812304.

The previous prime is 30217030747. The next prime is 30217030807. The reversal of 30217030780 is 8703071203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 755425750 + ... + 755425789.

It is an arithmetic number, because the mean of its divisors is an integer number (5287980390).

Almost surely, 2^30217030780 is an apocalyptic number.

It is an amenable number.

30217030780 is an abundant number, since it is smaller than the sum of its proper divisors (33238733900).

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

30217030780 is a wasteful number, since it uses less digits than its factorization.

30217030780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1510851548 (or 1510851546 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 31.

The spelling of 30217030780 in words is "thirty billion, two hundred seventeen million, thirty thousand, seven hundred eighty".