48650564381 has 4 divisors (see below), whose sum is σ = 49568499612. Its totient is φ = 47732629152.

The previous prime is 48650564363. The next prime is 48650564387. The reversal of 48650564381 is 18346505684.

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 39876495481 + 8774068900 = 199691^2 + 93670^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-48650564381 is a prime.

It is a super-2 number, since 2×48650564381² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48650564387) 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, 458967536 + ... + 458967641.

It is an arithmetic number, because the mean of its divisors is an integer number (12392124903).

Almost surely, 2^48650564381 is an apocalyptic number.

It is an amenable number.

48650564381 is a deficient number, since it is larger than the sum of its proper divisors (917935231).

48650564381 is an equidigital number, since it uses as much as digits as its factorization.

48650564381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917935230.

The product of its (nonzero) digits is 2764800, while the sum is 50.

The spelling of 48650564381 in words is "forty-eight billion, six hundred fifty million, five hundred sixty-four thousand, three hundred eighty-one".