381247537157 has 8 divisors (see below), whose sum is σ = 386183648256. Its totient is φ = 376331951232.

The previous prime is 381247537141. The next prime is 381247537159. The reversal of 381247537157 is 751735742183.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 381247537157 - 2⁴ = 381247537141 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 381247537099 and 381247537108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381247537159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5093903 + ... + 5168204.

It is an arithmetic number, because the mean of its divisors is an integer number (48272956032).

Almost surely, 2^381247537157 is an apocalyptic number.

It is an amenable number.

381247537157 is a deficient number, since it is larger than the sum of its proper divisors (4936111099).

381247537157 is a wasteful number, since it uses less digits than its factorization.

381247537157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10262587.

The product of its digits is 4939200, while the sum is 53.

The spelling of 381247537157 in words is "three hundred eighty-one billion, two hundred forty-seven million, five hundred thirty-seven thousand, one hundred fifty-seven".