48780646421 has 4 divisors (see below), whose sum is σ = 52533003852. Its totient is φ = 45028288992.

The previous prime is 48780646399. The next prime is 48780646441. The reversal of 48780646421 is 12464608784.

It is a happy number.

48780646421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 29339921521 + 19440724900 = 171289^2 + 139430^2 .

It is a cyclic number.

It is not a de Polignac number, because 48780646421 - 2²² = 48776452117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 48780646421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48780646441) 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, 1876178696 + ... + 1876178721.

It is an arithmetic number, because the mean of its divisors is an integer number (13133250963).

Almost surely, 2^48780646421 is an apocalyptic number.

It is an amenable number.

48780646421 is a deficient number, since it is larger than the sum of its proper divisors (3752357431).

48780646421 is a wasteful number, since it uses less digits than its factorization.

48780646421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3752357430.

The product of its (nonzero) digits is 2064384, while the sum is 50.

The spelling of 48780646421 in words is "forty-eight billion, seven hundred eighty million, six hundred forty-six thousand, four hundred twenty-one".