30763756816 has 45 divisors (see below), whose sum is σ = 64561593519. Its totient is φ = 14194447488.

The previous prime is 30763756811. The next prime is 30763756823. The reversal of 30763756816 is 61865736703.

The square root of 30763756816 is 175396.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 2539756816 + 28224000000 = 50396^2 + 168000^2 .

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30763756811) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 9118906 + ... + 9122278.

Almost surely, 2^30763756816 is an apocalyptic number.

30763756816 is the 175396-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30763756816

30763756816 is an abundant number, since it is smaller than the sum of its proper divisors (33797836703).

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

30763756816 is an frugal number, since it uses more digits than its factorization.

30763756816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6780 (or 3388 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 52.

The spelling of 30763756816 in words is "thirty billion, seven hundred sixty-three million, seven hundred fifty-six thousand, eight hundred sixteen".