861703264915 has 8 divisors (see below), whose sum is σ = 1034166732768. Its totient is φ = 689280735360.

The previous prime is 861703264907. The next prime is 861703264927. The reversal of 861703264915 is 519462307168.

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

It is not a de Polignac number, because 861703264915 - 2³ = 861703264907 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10188246 + ... + 10272475.

It is an arithmetic number, because the mean of its divisors is an integer number (129270841596).

It is a 2-persistent number, because it is pandigital, and so is 2⋅861703264915 = 1723406529830, but 3⋅861703264915 = 2585109794745 is not.

Almost surely, 2^861703264915 is an apocalyptic number.

861703264915 is a deficient number, since it is larger than the sum of its proper divisors (172463467853).

861703264915 is a wasteful number, since it uses less digits than its factorization.

861703264915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20469149.

The product of its (nonzero) digits is 2177280, while the sum is 52.

The spelling of 861703264915 in words is "eight hundred sixty-one billion, seven hundred three million, two hundred sixty-four thousand, nine hundred fifteen".