30769528020 has 288 divisors, whose sum is σ = 111724290048. Its totient is φ = 6187104000.

The previous prime is 30769528007. The next prime is 30769528033. The reversal of 30769528020 is 2082596703.

It is an interprime number because it is at equal distance from previous prime (30769528007) and next prime (30769528033).

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1565655 + ... + 1585185.

Almost surely, 2^30769528020 is an apocalyptic number.

30769528020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30769528020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55862145024).

30769528020 is an abundant number, since it is smaller than the sum of its proper divisors (80954762028).

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

30769528020 is a wasteful number, since it uses less digits than its factorization.

30769528020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19603 (or 19590 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The spelling of 30769528020 in words is "thirty billion, seven hundred sixty-nine million, five hundred twenty-eight thousand, twenty".