1948167653 has 4 divisors (see below), whose sum is σ = 1948259340. Its totient is φ = 1948075968.

The previous prime is 1948167629. The next prime is 1948167667. The reversal of 1948167653 is 3567618491.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3567618491 = 15959 ⋅223549.

It can be written as a sum of positive squares in 2 ways, for example, as 1011685249 + 936482404 = 31807^2 + 30602^2 .

It is a cyclic number.

It is not a de Polignac number, because 1948167653 - 2¹² = 1948163557 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 (1948167953) 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, 4343 + ... + 62571.

It is an arithmetic number, because the mean of its divisors is an integer number (487064835).

Almost surely, 2^1948167653 is an apocalyptic number.

It is an amenable number.

1948167653 is a deficient number, since it is larger than the sum of its proper divisors (91687).

1948167653 is an equidigital number, since it uses as much as digits as its factorization.

1948167653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91686.

The product of its digits is 1088640, while the sum is 50.

The square root of 1948167653 is about 44138.0522112157. The cubic root of 1948167653 is about 1248.9415366172.

The spelling of 1948167653 in words is "one billion, nine hundred forty-eight million, one hundred sixty-seven thousand, six hundred fifty-three".