8631540162394 has 8 divisors (see below), whose sum is σ = 12949388815860. Its totient is φ = 4315077223776.

The previous prime is 8631540162379. The next prime is 8631540162433. The reversal of 8631540162394 is 4932610451368.

It can be written as a sum of positive squares in 2 ways, for example, as 8417036871369 + 214503291025 = 2901213^2 + 463145^2 .

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

It is a super-2 number, since 2×8631540162394² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 346413139 + ... + 346438054.

Almost surely, 2^{8631540162394} is an apocalyptic number.

8631540162394 is a deficient number, since it is larger than the sum of its proper divisors (4317848653466).

8631540162394 is a wasteful number, since it uses less digits than its factorization.

8631540162394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692857424.

The product of its (nonzero) digits is 3732480, while the sum is 52.

The spelling of 8631540162394 in words is "eight trillion, six hundred thirty-one billion, five hundred forty million, one hundred sixty-two thousand, three hundred ninety-four".