861297541396 has 24 divisors (see below), whose sum is σ = 1544739880320. Its totient is φ = 420074645952.

The previous prime is 861297541331. The next prime is 861297541397. The reversal of 861297541396 is 693145792168.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (861297541397) 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, 16393201 + ... + 16445656.

It is an arithmetic number, because the mean of its divisors is an integer number (64364161680).

Almost surely, 2^861297541396 is an apocalyptic number.

It is an amenable number.

861297541396 is a deficient number, since it is larger than the sum of its proper divisors (683442338924).

861297541396 is a wasteful number, since it uses less digits than its factorization.

861297541396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32839023 (or 32839021 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 61.

The spelling of 861297541396 in words is "eight hundred sixty-one billion, two hundred ninety-seven million, five hundred forty-one thousand, three hundred ninety-six".