1658285849 has 4 divisors (see below), whose sum is σ = 1809039120. Its totient is φ = 1507532580.

The previous prime is 1658285833. The next prime is 1658285891. The reversal of 1658285849 is 9485828561.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1658285849 - 2⁴ = 1658285833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1658285794 and 1658285803.

It is not an unprimeable number, because it can be changed into a prime (1658285149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75376619 + ... + 75376640.

It is an arithmetic number, because the mean of its divisors is an integer number (452259780).

Almost surely, 2^1658285849 is an apocalyptic number.

It is an amenable number.

1658285849 is a deficient number, since it is larger than the sum of its proper divisors (150753271).

1658285849 is a wasteful number, since it uses less digits than its factorization.

1658285849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150753270.

The product of its digits is 5529600, while the sum is 56.

The square root of 1658285849 is about 40722.0560507448. The cubic root of 1658285849 is about 1183.6404494841.

The spelling of 1658285849 in words is "one billion, six hundred fifty-eight million, two hundred eighty-five thousand, eight hundred forty-nine".