1157536643278 has 8 divisors (see below), whose sum is σ = 1740550210560. Its totient is φ = 577353239760.

The previous prime is 1157536643273. The next prime is 1157536643279. The reversal of 1157536643278 is 8723466357511.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1157536643273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 707539918 + ... + 707541553.

It is an arithmetic number, because the mean of its divisors is an integer number (217568776320).

Almost surely, 2^{1157536643278} is an apocalyptic number.

1157536643278 is a deficient number, since it is larger than the sum of its proper divisors (583013567282).

1157536643278 is a wasteful number, since it uses less digits than its factorization.

1157536643278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1415081882.

The product of its digits is 25401600, while the sum is 58.

The spelling of 1157536643278 in words is "one trillion, one hundred fifty-seven billion, five hundred thirty-six million, six hundred forty-three thousand, two hundred seventy-eight".