625131450444361 has 32 divisors (see below), whose sum is σ = 757335200274432. Its totient is φ = 503725347313920.

The previous prime is 625131450444349. The next prime is 625131450444379. The reversal of 625131450444361 is 163444054131526.

It is a cyclic number.

It is not a de Polignac number, because 625131450444361 - 2²³ = 625131442055753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (625131450444961) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5823410890 + ... + 5823518236.

It is an arithmetic number, because the mean of its divisors is an integer number (23666725008576).

Almost surely, 2^{625131450444361} is an apocalyptic number.

It is an amenable number.

625131450444361 is a deficient number, since it is larger than the sum of its proper divisors (132203749830071).

625131450444361 is a wasteful number, since it uses less digits than its factorization.

625131450444361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163429.

The product of its (nonzero) digits is 4147200, while the sum is 49.

The spelling of 625131450444361 in words is "six hundred twenty-five trillion, one hundred thirty-one billion, four hundred fifty million, four hundred forty-four thousand, three hundred sixty-one".