15214657157 has 8 divisors (see below), whose sum is σ = 17504880000. Its totient is φ = 12953609424.

The previous prime is 15214657109. The next prime is 15214657177. The reversal of 15214657157 is 75175641251.

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

It is a de Polignac number, because none of the positive numbers 2^k-15214657157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15214657177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7292657 + ... + 7294742.

It is an arithmetic number, because the mean of its divisors is an integer number (2188110000).

Almost surely, 2^15214657157 is an apocalyptic number.

It is an amenable number.

15214657157 is a deficient number, since it is larger than the sum of its proper divisors (2290222843).

15214657157 is a wasteful number, since it uses less digits than its factorization.

15214657157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14587555.

The product of its digits is 294000, while the sum is 44.

The spelling of 15214657157 in words is "fifteen billion, two hundred fourteen million, six hundred fifty-seven thousand, one hundred fifty-seven".