1651320463 has 12 divisors (see below), whose sum is σ = 1789300800. Its totient is φ = 1523286336.

The previous prime is 1651320413. The next prime is 1651320467. The reversal of 1651320463 is 3640231561.

It is a de Polignac number, because none of the positive numbers 2^k-1651320463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1651320467) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 403395 + ... + 407467.

It is an arithmetic number, because the mean of its divisors is an integer number (149108400).

Almost surely, 2^1651320463 is an apocalyptic number.

1651320463 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1651320463 is a deficient number, since it is larger than the sum of its proper divisors (137980337).

1651320463 is a wasteful number, since it uses less digits than its factorization.

1651320463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6498 (or 6485 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 1651320463 is about 40636.4425485303. The cubic root of 1651320463 is about 1181.9808878107.

The spelling of 1651320463 in words is "one billion, six hundred fifty-one million, three hundred twenty thousand, four hundred sixty-three".