15426640193 has 8 divisors (see below), whose sum is σ = 15459855840. Its totient is φ = 15393447360.

The previous prime is 15426640153. The next prime is 15426640213. The reversal of 15426640193 is 39104662451.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15426640193 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15426640193.

It is not an unprimeable number, because it can be changed into a prime (15426640133) 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, 2217146 + ... + 2224092.

It is an arithmetic number, because the mean of its divisors is an integer number (1932481980).

Almost surely, 2^15426640193 is an apocalyptic number.

It is an amenable number.

15426640193 is a deficient number, since it is larger than the sum of its proper divisors (33215647).

15426640193 is an equidigital number, since it uses as much as digits as its factorization.

15426640193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11407.

The product of its (nonzero) digits is 155520, while the sum is 41.

The spelling of 15426640193 in words is "fifteen billion, four hundred twenty-six million, six hundred forty thousand, one hundred ninety-three".