8860861958399 has 24 divisors (see below), whose sum is σ = 9902344845120. Its totient is φ = 7921403804160.

The previous prime is 8860861958387. The next prime is 8860861958437. The reversal of 8860861958399 is 9938591680688.

It is a Cunningham number, because it is equal to 2976720²-1.

It is not a de Polignac number, because 8860861958399 - 2⁴ = 8860861958383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8860861958359) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1488362 + ... + 4465080.

It is an arithmetic number, because the mean of its divisors is an integer number (412597701880).

Almost surely, 2^{8860861958399} is an apocalyptic number.

8860861958399 is a deficient number, since it is larger than the sum of its proper divisors (1041482886721).

8860861958399 is a wasteful number, since it uses less digits than its factorization.

8860861958399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2977151 (or 2977140 counting only the distinct ones).

The product of its (nonzero) digits is 1612431360, while the sum is 80.

The spelling of 8860861958399 in words is "eight trillion, eight hundred sixty billion, eight hundred sixty-one million, nine hundred fifty-eight thousand, three hundred ninety-nine".