157873619736 has 144 divisors (see below), whose sum is σ = 492559788240. Its totient is φ = 44749272960.

The previous prime is 157873619723. The next prime is 157873619791. The reversal of 157873619736 is 637916378751.

It is a happy number.

157873619736 is a `hidden beast` number, since 1 + 5 + 7 + 8 + 7 + 3 + 619 + 7 + 3 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8119306 + ... + 8138726.

It is an arithmetic number, because the mean of its divisors is an integer number (3420554085).

Almost surely, 2^157873619736 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157873619736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246279894120).

157873619736 is an abundant number, since it is smaller than the sum of its proper divisors (334686168504).

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

157873619736 is a wasteful number, since it uses less digits than its factorization.

157873619736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19694 (or 19560 counting only the distinct ones).

The product of its digits is 40007520, while the sum is 63.

The spelling of 157873619736 in words is "one hundred fifty-seven billion, eight hundred seventy-three million, six hundred nineteen thousand, seven hundred thirty-six".