15850019325157 has 4 divisors (see below), whose sum is σ = 15862202277516. Its totient is φ = 15837836372800.

The previous prime is 15850019325143. The next prime is 15850019325181. The reversal of 15850019325157 is 75152391005851.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 578696439841 + 15271322885316 = 760721^2 + 3907854^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15850019325157 is a prime.

It is a super-2 number, since 2×15850019325157² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15850019325137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6091474228 + ... + 6091476829.

It is an arithmetic number, because the mean of its divisors is an integer number (3965550569379).

Almost surely, 2^{15850019325157} is an apocalyptic number.

It is an amenable number.

15850019325157 is a deficient number, since it is larger than the sum of its proper divisors (12182952359).

15850019325157 is a wasteful number, since it uses less digits than its factorization.

15850019325157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12182952358.

The product of its (nonzero) digits is 1890000, while the sum is 52.

The spelling of 15850019325157 in words is "fifteen trillion, eight hundred fifty billion, nineteen million, three hundred twenty-five thousand, one hundred fifty-seven".