70257887426 has 4 divisors (see below), whose sum is σ = 105386831142. Its totient is φ = 35128943712.

The previous prime is 70257887423. The next prime is 70257887449. The reversal of 70257887426 is 62478875207.

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., 54268032025 + 15989855401 = 232955^2 + 126451^2 .

It is not an unprimeable number, because it can be changed into a prime (70257887423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17564471855 + ... + 17564471858.

Almost surely, 2^70257887426 is an apocalyptic number.

70257887426 is a deficient number, since it is larger than the sum of its proper divisors (35128943716).

70257887426 is a wasteful number, since it uses less digits than its factorization.

70257887426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35128943715.

The product of its (nonzero) digits is 10536960, while the sum is 56.

The spelling of 70257887426 in words is "seventy billion, two hundred fifty-seven million, eight hundred eighty-seven thousand, four hundred twenty-six".