42957782050 has 24 divisors (see below), whose sum is σ = 79921191636. Its totient is φ = 17178872640.

The previous prime is 42957782039. The next prime is 42957782057. The reversal of 42957782050 is 5028775924.

It can be written as a sum of positive squares in 6 ways, for example, as 19062496489 + 23895285561 = 138067^2 + 154581^2 .

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 42957781985 and 42957782003.

It is not an unprimeable number, because it can be changed into a prime (42957782057) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102712 + ... + 310588.

Almost surely, 2^42957782050 is an apocalyptic number.

42957782050 is a deficient number, since it is larger than the sum of its proper divisors (36963409586).

42957782050 is a wasteful number, since it uses less digits than its factorization.

42957782050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212022 (or 212017 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 49.

The spelling of 42957782050 in words is "forty-two billion, nine hundred fifty-seven million, seven hundred eighty-two thousand, fifty".