259033977442 has 4 divisors (see below), whose sum is σ = 388550966166. Its totient is φ = 129516988720.

The previous prime is 259033977437. The next prime is 259033977443. The reversal of 259033977442 is 244779330952.

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., 187557420241 + 71476557201 = 433079^2 + 267351^2 .

It is not an unprimeable number, because it can be changed into a prime (259033977443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64758494359 + ... + 64758494362.

Almost surely, 2^259033977442 is an apocalyptic number.

259033977442 is a deficient number, since it is larger than the sum of its proper divisors (129516988724).

259033977442 is a wasteful number, since it uses less digits than its factorization.

259033977442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129516988723.

The product of its (nonzero) digits is 11430720, while the sum is 55.

The spelling of 259033977442 in words is "two hundred fifty-nine billion, thirty-three million, nine hundred seventy-seven thousand, four hundred forty-two".