15148680857 has 4 divisors (see below), whose sum is σ = 15155159760. Its totient is φ = 15142201956.

The previous prime is 15148680853. The next prime is 15148680889. The reversal of 15148680857 is 75808684151.

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 15148680857 - 2² = 15148680853 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15148680799 and 15148680808.

It is not an unprimeable number, because it can be changed into a prime (15148680853) 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, 3235943 + ... + 3240620.

It is an arithmetic number, because the mean of its divisors is an integer number (3788789940).

Almost surely, 2^15148680857 is an apocalyptic number.

It is an amenable number.

15148680857 is a deficient number, since it is larger than the sum of its proper divisors (6478903).

15148680857 is an equidigital number, since it uses as much as digits as its factorization.

15148680857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6478902.

The product of its (nonzero) digits is 2150400, while the sum is 53.

The spelling of 15148680857 in words is "fifteen billion, one hundred forty-eight million, six hundred eighty thousand, eight hundred fifty-seven".