861447476023 has 4 divisors (see below), whose sum is σ = 861449749560. Its totient is φ = 861445202488.

The previous prime is 861447476003. The next prime is 861447476033. The reversal of 861447476023 is 320674744168.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 861447476023 - 2²⁵ = 861413921591 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 (861447476003) 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, 416140 + ... + 1376977.

It is an arithmetic number, because the mean of its divisors is an integer number (215362437390).

Almost surely, 2^861447476023 is an apocalyptic number.

861447476023 is a deficient number, since it is larger than the sum of its proper divisors (2273537).

861447476023 is a wasteful number, since it uses less digits than its factorization.

861447476023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2273536.

The product of its (nonzero) digits is 5419008, while the sum is 52.

The spelling of 861447476023 in words is "eight hundred sixty-one billion, four hundred forty-seven million, four hundred seventy-six thousand, twenty-three".