425987566474 has 4 divisors (see below), whose sum is σ = 638981349714. Its totient is φ = 212993783236.

The previous prime is 425987566471. The next prime is 425987566481. The reversal of 425987566474 is 474665789524.

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., 262290452449 + 163697114025 = 512143^2 + 404595^2 .

It is not an unprimeable number, because it can be changed into a prime (425987566471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106496891617 + ... + 106496891620.

Almost surely, 2^425987566474 is an apocalyptic number.

425987566474 is a deficient number, since it is larger than the sum of its proper divisors (212993783240).

425987566474 is a wasteful number, since it uses less digits than its factorization.

425987566474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212993783239.

The product of its digits is 406425600, while the sum is 67.

The spelling of 425987566474 in words is "four hundred twenty-five billion, nine hundred eighty-seven million, five hundred sixty-six thousand, four hundred seventy-four".