30753678828 has 12 divisors (see below), whose sum is σ = 71758583960. Its totient is φ = 10251226272.

The previous prime is 30753678799. The next prime is 30753678829. The reversal of 30753678828 is 82887635703.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×30753678828² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30753678829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1281403273 + ... + 1281403296.

Almost surely, 2^30753678828 is an apocalyptic number.

It is an amenable number.

30753678828 is an abundant number, since it is smaller than the sum of its proper divisors (41004905132).

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

30753678828 is a wasteful number, since it uses less digits than its factorization.

30753678828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2562806576 (or 2562806574 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 57.

The spelling of 30753678828 in words is "thirty billion, seven hundred fifty-three million, six hundred seventy-eight thousand, eight hundred twenty-eight".