8373409557 has 8 divisors (see below), whose sum is σ = 11165537376. Its totient is φ = 5581777392.

The previous prime is 8373409547. The next prime is 8373409589. The reversal of 8373409557 is 7559043738.

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

It is not a de Polignac number, because 8373409557 - 2¹⁵ = 8373376789 is a prime.

It is a super-2 number, since 2×8373409557² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8373409507) 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, 82518 + ... + 153479.

It is an arithmetic number, because the mean of its divisors is an integer number (1395692172).

Almost surely, 2^8373409557 is an apocalyptic number.

It is an amenable number.

8373409557 is a deficient number, since it is larger than the sum of its proper divisors (2792127819).

8373409557 is a wasteful number, since it uses less digits than its factorization.

8373409557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247827.

The product of its (nonzero) digits is 3175200, while the sum is 51.

The square root of 8373409557 is about 91506.3361576672. The cubic root of 8373409557 is about 2030.6454916220.

The spelling of 8373409557 in words is "eight billion, three hundred seventy-three million, four hundred nine thousand, five hundred fifty-seven".