1631043363 has 16 divisors (see below), whose sum is σ = 2238980480. Its totient is φ = 1055545344.

The previous prime is 1631043343. The next prime is 1631043371. The reversal of 1631043363 is 3633401361.

It is not a de Polignac number, because 1631043363 - 2⁸ = 1631043107 is a prime.

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 1631043363.

It is not an unprimeable number, because it can be changed into a prime (1631043343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17758 + ... + 59811.

It is an arithmetic number, because the mean of its divisors is an integer number (139936280).

Almost surely, 2^1631043363 is an apocalyptic number.

1631043363 is a deficient number, since it is larger than the sum of its proper divisors (607937117).

1631043363 is a wasteful number, since it uses less digits than its factorization.

1631043363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77778.

The product of its (nonzero) digits is 11664, while the sum is 30.

The square root of 1631043363 is about 40386.1778706527. The cubic root of 1631043363 is about 1177.1229735802.

The spelling of 1631043363 in words is "one billion, six hundred thirty-one million, forty-three thousand, three hundred sixty-three".