1612796491 has 4 divisors (see below), whose sum is σ = 1622691112. Its totient is φ = 1602901872.

The previous prime is 1612796461. The next prime is 1612796503. The reversal of 1612796491 is 1946972161.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1612796491 - 2⁹ = 1612795979 is a prime.

It is a super-2 number, since 2×1612796491² = 5202225042763826162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1612796461) 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 3 ways as a sum of consecutive naturals, for example, 4947066 + ... + 4947391.

It is an arithmetic number, because the mean of its divisors is an integer number (405672778).

Almost surely, 2^1612796491 is an apocalyptic number.

1612796491 is a deficient number, since it is larger than the sum of its proper divisors (9894621).

1612796491 is an equidigital number, since it uses as much as digits as its factorization.

1612796491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9894620.

The product of its digits is 163296, while the sum is 46.

The square root of 1612796491 is about 40159.6375855161. The cubic root of 1612796491 is about 1172.7169166004.

The spelling of 1612796491 in words is "one billion, six hundred twelve million, seven hundred ninety-six thousand, four hundred ninety-one".