1625604410431 has 8 divisors (see below), whose sum is σ = 1626379589744. Its totient is φ = 1624829414400.

The previous prime is 1625604410401. The next prime is 1625604410449. The reversal of 1625604410431 is 1340144065261.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1625604410431 - 2¹⁹ = 1625603886143 is a prime.

It is a super-2 number, since 2×1625604410431² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1625604410401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19667116 + ... + 19749598.

It is an arithmetic number, because the mean of its divisors is an integer number (203297448718).

Almost surely, 2^{1625604410431} is an apocalyptic number.

1625604410431 is a deficient number, since it is larger than the sum of its proper divisors (775179313).

1625604410431 is an equidigital number, since it uses as much as digits as its factorization.

1625604410431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91641.

The product of its (nonzero) digits is 69120, while the sum is 37.

Adding to 1625604410431 its reverse (1340144065261), we get a palindrome (2965748475692).

The spelling of 1625604410431 in words is "one trillion, six hundred twenty-five billion, six hundred four million, four hundred ten thousand, four hundred thirty-one".