2861233427397 has 4 divisors (see below), whose sum is σ = 3814977903200. Its totient is φ = 1907488951596.

The previous prime is 2861233427389. The next prime is 2861233427411. The reversal of 2861233427397 is 7937243321682.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2861233427397 - 2³ = 2861233427389 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 (2861233427317) 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, 476872237897 + ... + 476872237902.

It is an arithmetic number, because the mean of its divisors is an integer number (953744475800).

Almost surely, 2^{2861233427397} is an apocalyptic number.

It is an amenable number.

2861233427397 is a deficient number, since it is larger than the sum of its proper divisors (953744475803).

2861233427397 is an equidigital number, since it uses as much as digits as its factorization.

2861233427397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953744475802.

The product of its digits is 18289152, while the sum is 57.

The spelling of 2861233427397 in words is "two trillion, eight hundred sixty-one billion, two hundred thirty-three million, four hundred twenty-seven thousand, three hundred ninety-seven".