8323078421157 has 4 divisors (see below), whose sum is σ = 11097437894880. Its totient is φ = 5548718947436.

The previous prime is 8323078421153. The next prime is 8323078421183. The reversal of 8323078421157 is 7511248703238.

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 8323078421157 - 2² = 8323078421153 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8323078421153) 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, 1387179736857 + ... + 1387179736862.

It is an arithmetic number, because the mean of its divisors is an integer number (2774359473720).

Almost surely, 2^{8323078421157} is an apocalyptic number.

It is an amenable number.

8323078421157 is a deficient number, since it is larger than the sum of its proper divisors (2774359473723).

8323078421157 is a wasteful number, since it uses less digits than its factorization.

8323078421157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2774359473722.

The product of its (nonzero) digits is 2257920, while the sum is 51.

The spelling of 8323078421157 in words is "eight trillion, three hundred twenty-three billion, seventy-eight million, four hundred twenty-one thousand, one hundred fifty-seven".