2148591763 has 4 divisors (see below), whose sum is σ = 2261675560. Its totient is φ = 2035507968.

The previous prime is 2148591761. The next prime is 2148591769. The reversal of 2148591763 is 3671958412.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2148591763 - 2¹ = 2148591761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2148591761) 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, 56541870 + ... + 56541907.

It is an arithmetic number, because the mean of its divisors is an integer number (565418890).

Almost surely, 2^2148591763 is an apocalyptic number.

2148591763 is a deficient number, since it is larger than the sum of its proper divisors (113083797).

2148591763 is a wasteful number, since it uses less digits than its factorization.

2148591763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113083796.

The product of its digits is 362880, while the sum is 46.

The square root of 2148591763 is about 46352.9045799721. The cubic root of 2148591763 is about 1290.3810270000.

The spelling of 2148591763 in words is "two billion, one hundred forty-eight million, five hundred ninety-one thousand, seven hundred sixty-three".