1157381036617 has 8 divisors (see below), whose sum is σ = 1247718241224. Its totient is φ = 1067230674048.

The previous prime is 1157381036563. The next prime is 1157381036621. The reversal of 1157381036617 is 7166301837511.

It can be written as a sum of positive squares in 4 ways, for example, as 80790103696 + 1076590932921 = 284236^2 + 1037589^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1157381036617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1157381036117) 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, 46697638 + ... + 46722415.

It is an arithmetic number, because the mean of its divisors is an integer number (155964780153).

Almost surely, 2^{1157381036617} is an apocalyptic number.

It is an amenable number.

1157381036617 is a deficient number, since it is larger than the sum of its proper divisors (90337204607).

1157381036617 is an equidigital number, since it uses as much as digits as its factorization.

1157381036617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93421019.

The product of its (nonzero) digits is 635040, while the sum is 49.

The spelling of 1157381036617 in words is "one trillion, one hundred fifty-seven billion, three hundred eighty-one million, thirty-six thousand, six hundred seventeen".