15849106858 has 32 divisors (see below), whose sum is σ = 25956552384. Its totient is φ = 7214397312.

The previous prime is 15849106853. The next prime is 15849106873. The reversal of 15849106858 is 85860194851.

It is a junction number, because it is equal to n+sod(n) for n = 15849106799 and 15849106808.

It is not an unprimeable number, because it can be changed into a prime (15849106853) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 618966 + ... + 644062.

It is an arithmetic number, because the mean of its divisors is an integer number (811142262).

Almost surely, 2^15849106858 is an apocalyptic number.

15849106858 is a deficient number, since it is larger than the sum of its proper divisors (10107445526).

15849106858 is a wasteful number, since it uses less digits than its factorization.

15849106858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25446.

The product of its (nonzero) digits is 2764800, while the sum is 55.

The spelling of 15849106858 in words is "fifteen billion, eight hundred forty-nine million, one hundred six thousand, eight hundred fifty-eight".