1380001777 has 8 divisors (see below), whose sum is σ = 1720521792. Its totient is φ = 1075326000.

The previous prime is 1380001759. The next prime is 1380001789. The reversal of 1380001777 is 7771000831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1380001777 - 2¹⁵ = 1379969009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1380001277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8960974 + ... + 8961127.

It is an arithmetic number, because the mean of its divisors is an integer number (215065224).

Almost surely, 2^1380001777 is an apocalyptic number.

It is an amenable number.

1380001777 is a deficient number, since it is larger than the sum of its proper divisors (340520015).

1380001777 is a wasteful number, since it uses less digits than its factorization.

1380001777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17922119.

The product of its (nonzero) digits is 8232, while the sum is 34.

The square root of 1380001777 is about 37148.3751596217. The cubic root of 1380001777 is about 1113.3367593948.

The spelling of 1380001777 in words is "one billion, three hundred eighty million, one thousand, seven hundred seventy-seven".