8390143377 has 64 divisors (see below), whose sum is σ = 15688581120. Its totient is φ = 4358428560.

The previous prime is 8390143373. The next prime is 8390143387. The reversal of 8390143377 is 7733410938.

It is not a de Polignac number, because 8390143377 - 2² = 8390143373 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8390143373) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 143488 + ... + 193310.

It is an arithmetic number, because the mean of its divisors is an integer number (245134080).

Almost surely, 2^8390143377 is an apocalyptic number.

It is an amenable number.

8390143377 is a deficient number, since it is larger than the sum of its proper divisors (7298437743).

8390143377 is an equidigital number, since it uses as much as digits as its factorization.

8390143377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49862 (or 49844 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The square root of 8390143377 is about 91597.7258287563. The cubic root of 8390143377 is about 2031.9973043634.

The spelling of 8390143377 in words is "eight billion, three hundred ninety million, one hundred forty-three thousand, three hundred seventy-seven".