48135971421 has 6 divisors (see below), whose sum is σ = 69529736510. Its totient is φ = 32090647608.

The previous prime is 48135971369. The next prime is 48135971431. The reversal of 48135971421 is 12417953184.

48135971421 is a `hidden beast` number, since 4 + 8 + 13 + 597 + 1 + 42 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 37167598521 + 10968372900 = 192789^2 + 104730^2 .

It is not a de Polignac number, because 48135971421 - 2⁷ = 48135971293 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 (48135971431) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2674220626 + ... + 2674220643.

Almost surely, 2^48135971421 is an apocalyptic number.

It is an amenable number.

48135971421 is a deficient number, since it is larger than the sum of its proper divisors (21393765089).

48135971421 is a wasteful number, since it uses less digits than its factorization.

48135971421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5348441275 (or 5348441272 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The spelling of 48135971421 in words is "forty-eight billion, one hundred thirty-five million, nine hundred seventy-one thousand, four hundred twenty-one".