5421815157 has 8 divisors (see below), whose sum is σ = 7886276640. Its totient is φ = 3285948560.

The previous prime is 5421815137. The next prime is 5421815173. The reversal of 5421815157 is 7515181245.

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

It is a cyclic number.

It is not a de Polignac number, because 5421815157 - 2¹¹ = 5421813109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5421815137) 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, 82148682 + ... + 82148747.

It is an arithmetic number, because the mean of its divisors is an integer number (985784580).

Almost surely, 2^5421815157 is an apocalyptic number.

It is an amenable number.

5421815157 is a deficient number, since it is larger than the sum of its proper divisors (2464461483).

5421815157 is a wasteful number, since it uses less digits than its factorization.

5421815157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164297443.

The product of its digits is 56000, while the sum is 39.

The square root of 5421815157 is about 73632.9760161845. The cubic root of 5421815157 is about 1756.7699836896.

The spelling of 5421815157 in words is "five billion, four hundred twenty-one million, eight hundred fifteen thousand, one hundred fifty-seven".