30514647785680 has 80 divisors (see below), whose sum is σ = 72685997423424. Its totient is φ = 11907300464640.

The previous prime is 30514647785663. The next prime is 30514647785683. The reversal of 30514647785680 is 8658774641503.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×30514647785680² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30514647785683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2679049 + ... + 8258728.

Almost surely, 2^{30514647785680} is an apocalyptic number.

It is an amenable number.

30514647785680 is an abundant number, since it is smaller than the sum of its proper divisors (42171349637744).

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

30514647785680 is a wasteful number, since it uses less digits than its factorization.

30514647785680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10938644 (or 10938638 counting only the distinct ones).

The product of its (nonzero) digits is 135475200, while the sum is 64.

The spelling of 30514647785680 in words is "thirty trillion, five hundred fourteen billion, six hundred forty-seven million, seven hundred eighty-five thousand, six hundred eighty".