157686534051834 has 32 divisors (see below), whose sum is σ = 332428283066880. Its totient is φ = 49727252730672.

The previous prime is 157686534051833. The next prime is 157686534051859. The reversal of 157686534051834 is 438150435686751.

It is a happy 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 15 ways as a sum of consecutive naturals, for example, 951234324 + ... + 951400079.

It is an arithmetic number, because the mean of its divisors is an integer number (10388383845840).

Almost surely, 2^{157686534051834} is an apocalyptic number.

157686534051834 is an abundant number, since it is smaller than the sum of its proper divisors (174741749015046).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

157686534051834 is a wasteful number, since it uses less digits than its factorization.

157686534051834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1902635154.

The product of its (nonzero) digits is 290304000, while the sum is 66.

The spelling of 157686534051834 in words is "one hundred fifty-seven trillion, six hundred eighty-six billion, five hundred thirty-four million, fifty-one thousand, eight hundred thirty-four".