8154942377 has 4 divisors (see below), whose sum is σ = 8180996820. Its totient is φ = 8128887936.

The previous prime is 8154942371. The next prime is 8154942421. The reversal of 8154942377 is 7732494518.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1940931136 + 6214011241 = 44056^2 + 78829^2 .

It is a cyclic number.

It is not a de Polignac number, because 8154942377 - 2⁸ = 8154942121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8154942371) 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, 13026752 + ... + 13027377.

It is an arithmetic number, because the mean of its divisors is an integer number (2045249205).

Almost surely, 2^8154942377 is an apocalyptic number.

It is an amenable number.

8154942377 is a deficient number, since it is larger than the sum of its proper divisors (26054443).

8154942377 is a wasteful number, since it uses less digits than its factorization.

8154942377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26054442.

The product of its digits is 1693440, while the sum is 50.

The square root of 8154942377 is about 90304.7195721242. The cubic root of 8154942377 is about 2012.8293921295.

The spelling of 8154942377 in words is "eight billion, one hundred fifty-four million, nine hundred forty-two thousand, three hundred seventy-seven".