612304401172 has 24 divisors (see below), whose sum is σ = 1119244089600. Its totient is φ = 292725365856.

The previous prime is 612304401169. The next prime is 612304401193. The reversal of 612304401172 is 271104403216.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25611772 + ... + 25635667.

It is an arithmetic number, because the mean of its divisors is an integer number (46635170400).

Almost surely, 2^612304401172 is an apocalyptic number.

It is an amenable number.

612304401172 is a deficient number, since it is larger than the sum of its proper divisors (506939688428).

612304401172 is a wasteful number, since it uses less digits than its factorization.

612304401172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51247575 (or 51247573 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

Adding to 612304401172 its reverse (271104403216), we get a palindrome (883408804388).

The spelling of 612304401172 in words is "six hundred twelve billion, three hundred four million, four hundred one thousand, one hundred seventy-two".