48995973421 has 2 divisors, whose sum is σ = 48995973422. Its totient is φ = 48995973420.

The previous prime is 48995973337. The next prime is 48995973457. The reversal of 48995973421 is 12437959984.

48995973421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46188457225 + 2807516196 = 214915^2 + 52986^2 .

It is a cyclic number.

It is not a de Polignac number, because 48995973421 - 2¹¹ = 48995971373 is a prime.

It is a super-2 number, since 2×48995973421² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 48995973421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48995973461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24497986710 + 24497986711.

It is an arithmetic number, because the mean of its divisors is an integer number (24497986711).

Almost surely, 2^48995973421 is an apocalyptic number.

It is an amenable number.

48995973421 is a deficient number, since it is larger than the sum of its proper divisors (1).

48995973421 is an equidigital number, since it uses as much as digits as its factorization.

48995973421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19595520, while the sum is 61.

The spelling of 48995973421 in words is "forty-eight billion, nine hundred ninety-five million, nine hundred seventy-three thousand, four hundred twenty-one".