157858746381 has 36 divisors (see below), whose sum is σ = 268441441632. Its totient is φ = 89118170064.

The previous prime is 157858746379. The next prime is 157858746403. The reversal of 157858746381 is 183647858751.

157858746381 is a `hidden beast` number, since 1 + 5 + 7 + 8 + 587 + 46 + 3 + 8 + 1 = 666.

It is not a de Polignac number, because 157858746381 - 2¹ = 157858746379 is a prime.

It is a super-2 number, since 2×157858746381² (a number of 23 digits) contains 22 as substring.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157858746481) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2119761 + ... + 2192966.

It is an arithmetic number, because the mean of its divisors is an integer number (7456706712).

Almost surely, 2^157858746381 is an apocalyptic number.

It is an amenable number.

157858746381 is a deficient number, since it is larger than the sum of its proper divisors (110582695251).

157858746381 is a wasteful number, since it uses less digits than its factorization.

157858746381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4312830 (or 4312820 counting only the distinct ones).

The product of its digits is 45158400, while the sum is 63.

The spelling of 157858746381 in words is "one hundred fifty-seven billion, eight hundred fifty-eight million, seven hundred forty-six thousand, three hundred eighty-one".