1496489802721 has 3 divisors (see below), whose sum is σ = 1496491026033. Its totient is φ = 1496488579410.

The previous prime is 1496489802719. The next prime is 1496489802809. The reversal of 1496489802721 is 1272089846941.

The square root of 1496489802721 is 1223311.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 1496489802721 - 2¹ = 1496489802719 is a prime.

It is a super-3 number, since 3×1496489802721³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1496489802721.

It is not an unprimeable number, because it can be changed into a prime (1496489842721) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 611656 + ... + 1834966.

It is an arithmetic number, because the mean of its divisors is an integer number (498830342011).

Almost surely, 2^{1496489802721} is an apocalyptic number.

1496489802721 is the 1223311-st square number.

1496489802721 is the 611656-th centered octagonal number.

It is an amenable number.

1496489802721 is a deficient number, since it is larger than the sum of its proper divisors (1223312).

1496489802721 is an frugal number, since it uses more digits than its factorization.

1496489802721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2446622 (or 1223311 counting only the distinct ones).

The product of its (nonzero) digits is 13934592, while the sum is 61.

The spelling of 1496489802721 in words is "one trillion, four hundred ninety-six billion, four hundred eighty-nine million, eight hundred two thousand, seven hundred twenty-one".