48556493781 has 4 divisors (see below), whose sum is σ = 64741991712. Its totient is φ = 32370995852.

The previous prime is 48556493773. The next prime is 48556493789. The reversal of 48556493781 is 18739465584.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (48556493773) and next prime (48556493789).

It is a cyclic number.

It is not a de Polignac number, because 48556493781 - 2³ = 48556493773 is a prime.

It is a super-2 number, since 2×48556493781² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48556493789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8092748961 + ... + 8092748966.

It is an arithmetic number, because the mean of its divisors is an integer number (16185497928).

Almost surely, 2^48556493781 is an apocalyptic number.

It is an amenable number.

48556493781 is a deficient number, since it is larger than the sum of its proper divisors (16185497931).

48556493781 is a wasteful number, since it uses less digits than its factorization.

48556493781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16185497930.

The product of its digits is 29030400, while the sum is 60.

The spelling of 48556493781 in words is "forty-eight billion, five hundred fifty-six million, four hundred ninety-three thousand, seven hundred eighty-one".