20148532349 has 48 divisors (see below), whose sum is σ = 23747480064. Its totient is φ = 16946236800.

The previous prime is 20148532343. The next prime is 20148532351. The reversal of 20148532349 is 94323584102.

It is not a de Polignac number, because 20148532349 - 2²⁰ = 20147483773 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20148532343) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 54017327 + ... + 54017699.

It is an arithmetic number, because the mean of its divisors is an integer number (494739168).

Almost surely, 2^20148532349 is an apocalyptic number.

It is an amenable number.

20148532349 is a deficient number, since it is larger than the sum of its proper divisors (3598947715).

20148532349 is a wasteful number, since it uses less digits than its factorization.

20148532349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706 (or 687 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 20148532349 in words is "twenty billion, one hundred forty-eight million, five hundred thirty-two thousand, three hundred forty-nine".