157871144230734 has 96 divisors (see below), whose sum is σ = 347586788989440. Its totient is φ = 47766571776000.

The previous prime is 157871144230601. The next prime is 157871144230739. The reversal of 157871144230734 is 437032441178751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157871144230739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1259169069 + ... + 1259294439.

It is an arithmetic number, because the mean of its divisors is an integer number (3620695718640).

Almost surely, 2^{157871144230734} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157871144230734, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173793394494720).

157871144230734 is an abundant number, since it is smaller than the sum of its proper divisors (189715644758706).

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

157871144230734 is a wasteful number, since it uses less digits than its factorization.

157871144230734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128038 (or 128027 counting only the distinct ones).

The product of its (nonzero) digits is 15805440, while the sum is 57.

The spelling of 157871144230734 in words is "one hundred fifty-seven trillion, eight hundred seventy-one billion, one hundred forty-four million, two hundred thirty thousand, seven hundred thirty-four".