397776847143 has 16 divisors (see below), whose sum is σ = 581943489120. Its totient is φ = 240167151744.

The previous prime is 397776847099. The next prime is 397776847147. The reversal of 397776847143 is 341748677793.

It is not a de Polignac number, because 397776847143 - 2⁹ = 397776846631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397776847147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96218748 + ... + 96222881.

It is an arithmetic number, because the mean of its divisors is an integer number (36371468070).

Almost surely, 2^397776847143 is an apocalyptic number.

397776847143 is a deficient number, since it is larger than the sum of its proper divisors (184166641977).

397776847143 is a wasteful number, since it uses less digits than its factorization.

397776847143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192441698.

The product of its digits is 149361408, while the sum is 66.

The spelling of 397776847143 in words is "three hundred ninety-seven billion, seven hundred seventy-six million, eight hundred forty-seven thousand, one hundred forty-three".