42945930756 has 135 divisors (see below), whose sum is σ = 116567610159. Its totient is φ = 13786863552.

The previous prime is 42945930751. The next prime is 42945930761. The reversal of 42945930756 is 65703954924.

The square root of 42945930756 is 207234.

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

42945930756 is a `hidden beast` number, since 42 + 9 + 4 + 593 + 0 + 7 + 5 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (42945930751) and next prime (42945930761).

It can be written as a sum of positive squares in 4 ways, for example, as 1662192900 + 41283737856 = 40770^2 + 203184^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (42945930751) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 108175950 + ... + 108176346.

Almost surely, 2^42945930756 is an apocalyptic number.

42945930756 is the 207234-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42945930756

42945930756 is an abundant number, since it is smaller than the sum of its proper divisors (73621679403).

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

42945930756 is an equidigital number, since it uses as much as digits as its factorization.

42945930756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868 (or 431 counting only the distinct ones).

The product of its (nonzero) digits is 8164800, while the sum is 54.

The spelling of 42945930756 in words is "forty-two billion, nine hundred forty-five million, nine hundred thirty thousand, seven hundred fifty-six".