42495761026 has 4 divisors (see below), whose sum is σ = 63743641542. Its totient is φ = 21247880512.

The previous prime is 42495760933. The next prime is 42495761047. The reversal of 42495761026 is 62016759424.

42495761026 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 206145²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 42495761025 + 1 = 206145^2 + 1^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10623940255 + ... + 10623940258.

Almost surely, 2^42495761026 is an apocalyptic number.

42495761026 is a deficient number, since it is larger than the sum of its proper divisors (21247880516).

42495761026 is a wasteful number, since it uses less digits than its factorization.

42495761026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21247880515.

The product of its (nonzero) digits is 725760, while the sum is 46.

The spelling of 42495761026 in words is "forty-two billion, four hundred ninety-five million, seven hundred sixty-one thousand, twenty-six".