1654949263 has 8 divisors (see below), whose sum is σ = 1811564496. Its totient is φ = 1499361600.

The previous prime is 1654949249. The next prime is 1654949273. The reversal of 1654949263 is 3629494561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1654949263 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 (1654949273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253518 + ... + 259963.

It is an arithmetic number, because the mean of its divisors is an integer number (226445562).

Almost surely, 2^1654949263 is an apocalyptic number.

1654949263 is a deficient number, since it is larger than the sum of its proper divisors (156615233).

1654949263 is a wasteful number, since it uses less digits than its factorization.

1654949263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513785.

The product of its digits is 1399680, while the sum is 49.

The square root of 1654949263 is about 40681.0676236502. The cubic root of 1654949263 is about 1182.8460609318.

The spelling of 1654949263 in words is "one billion, six hundred fifty-four million, nine hundred forty-nine thousand, two hundred sixty-three".