1382951394877 has 4 divisors (see below), whose sum is σ = 1489332271420. Its totient is φ = 1276570518336.

The previous prime is 1382951394871. The next prime is 1382951394893. The reversal of 1382951394877 is 7784931592831.

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 388651249561 + 994300145316 = 623419^2 + 997146^2 .

It is a cyclic number.

It is not a de Polignac number, because 1382951394877 - 2³¹ = 1380803911229 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 (1382951394871) 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, 53190438252 + ... + 53190438277.

It is an arithmetic number, because the mean of its divisors is an integer number (372333067855).

Almost surely, 2^{1382951394877} is an apocalyptic number.

It is an amenable number.

1382951394877 is a deficient number, since it is larger than the sum of its proper divisors (106380876543).

1382951394877 is a wasteful number, since it uses less digits than its factorization.

1382951394877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106380876542.

The product of its digits is 91445760, while the sum is 67.

The spelling of 1382951394877 in words is "one trillion, three hundred eighty-two billion, nine hundred fifty-one million, three hundred ninety-four thousand, eight hundred seventy-seven".