48390811971 has 8 divisors (see below), whose sum is σ = 66264895824. Its totient is φ = 31388634720.

The previous prime is 48390811969. The next prime is 48390811993. The reversal of 48390811971 is 17911809384.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 48390811971 - 2¹ = 48390811969 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (48390811471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217976520 + ... + 217976741.

It is an arithmetic number, because the mean of its divisors is an integer number (8283111978).

Almost surely, 2^48390811971 is an apocalyptic number.

48390811971 is a deficient number, since it is larger than the sum of its proper divisors (17874083853).

48390811971 is a wasteful number, since it uses less digits than its factorization.

48390811971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435953301.

The product of its (nonzero) digits is 435456, while the sum is 51.

The spelling of 48390811971 in words is "forty-eight billion, three hundred ninety million, eight hundred eleven thousand, nine hundred seventy-one".