1612646497 has 36 divisors (see below), whose sum is σ = 2083167828. Its totient is φ = 1243704000.

The previous prime is 1612646479. The next prime is 1612646507. The reversal of 1612646497 is 7946462161.

It can be written as a sum of positive squares in 2 ways, for example, as 1189974016 + 422672481 = 34496^2 + 20559^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1612646497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1612646797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 597483 + ... + 600175.

It is an arithmetic number, because the mean of its divisors is an integer number (57865773).

Almost surely, 2^1612646497 is an apocalyptic number.

It is an amenable number.

1612646497 is a deficient number, since it is larger than the sum of its proper divisors (470521331).

1612646497 is a wasteful number, since it uses less digits than its factorization.

1612646497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2830 (or 2812 counting only the distinct ones).

The product of its digits is 435456, while the sum is 46.

The square root of 1612646497 is about 40157.7700700624. The cubic root of 1612646497 is about 1172.6805602973.

It can be divided in two parts, 161264 and 6497, that added together give a palindrome (167761).

The spelling of 1612646497 in words is "one billion, six hundred twelve million, six hundred forty-six thousand, four hundred ninety-seven".