5348157821 has 4 divisors (see below), whose sum is σ = 5348818944. Its totient is φ = 5347496700.

The previous prime is 5348157797. The next prime is 5348157877. The reversal of 5348157821 is 1287518435.

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 a cyclic number.

It is not a de Polignac number, because 5348157821 - 2²² = 5343963517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5348151821) 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, 318275 + ... + 334656.

It is an arithmetic number, because the mean of its divisors is an integer number (1337204736).

Almost surely, 2^5348157821 is an apocalyptic number.

It is an amenable number.

5348157821 is a deficient number, since it is larger than the sum of its proper divisors (661123).

5348157821 is an equidigital number, since it uses as much as digits as its factorization.

5348157821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661122.

The product of its digits is 268800, while the sum is 44.

The square root of 5348157821 is about 73131.1002310235. The cubic root of 5348157821 is about 1748.7782297720.

The spelling of 5348157821 in words is "five billion, three hundred forty-eight million, one hundred fifty-seven thousand, eight hundred twenty-one".