15226946906 has 4 divisors (see below), whose sum is σ = 22840420362. Its totient is φ = 7613473452.

The previous prime is 15226946873. The next prime is 15226946963. The reversal of 15226946906 is 60964962251.

It is a happy number.

15226946906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 15181936225 + 45010681 = 123215^2 + 6709^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3806736725 + ... + 3806736728.

Almost surely, 2^15226946906 is an apocalyptic number.

15226946906 is a deficient number, since it is larger than the sum of its proper divisors (7613473456).

15226946906 is an equidigital number, since it uses as much as digits as its factorization.

15226946906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7613473455.

The product of its (nonzero) digits is 1399680, while the sum is 50.

The spelling of 15226946906 in words is "fifteen billion, two hundred twenty-six million, nine hundred forty-six thousand, nine hundred six".