157686534051837 has 32 divisors (see below), whose sum is σ = 241293405323520. Its totient is φ = 89728476764160.

The previous prime is 157686534051833. The next prime is 157686534051859. The reversal of 157686534051837 is 738150435686751.

It is a happy number.

It is not a de Polignac number, because 157686534051837 - 2² = 157686534051833 is a prime.

It is a super-2 number, since 2×157686534051837² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157686534051833) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5048683 + ... + 18462455.

It is an arithmetic number, because the mean of its divisors is an integer number (7540418916360).

Almost surely, 2^{157686534051837} is an apocalyptic number.

It is an amenable number.

157686534051837 is a deficient number, since it is larger than the sum of its proper divisors (83606871271683).

157686534051837 is a wasteful number, since it uses less digits than its factorization.

157686534051837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13416133.

The product of its (nonzero) digits is 508032000, while the sum is 69.

The spelling of 157686534051837 in words is "one hundred fifty-seven trillion, six hundred eighty-six billion, five hundred thirty-four million, fifty-one thousand, eight hundred thirty-seven".