425164132072 has 8 divisors (see below), whose sum is σ = 797182747650. Its totient is φ = 212582066032.

The previous prime is 425164132067. The next prime is 425164132079. The reversal of 425164132072 is 270231461524.

It can be written as a sum of positive squares in only one way, i.e., 233805129156 + 191359002916 = 483534^2 + 437446^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (425164132079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26572758247 + ... + 26572758262.

Almost surely, 2^425164132072 is an apocalyptic number.

It is an amenable number.

425164132072 is a deficient number, since it is larger than the sum of its proper divisors (372018615578).

425164132072 is a wasteful number, since it uses less digits than its factorization.

425164132072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53145516515 (or 53145516511 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 37.

Adding to 425164132072 its reverse (270231461524), we get a palindrome (695395593596).

The spelling of 425164132072 in words is "four hundred twenty-five billion, one hundred sixty-four million, one hundred thirty-two thousand, seventy-two".