381699759577 has 4 divisors (see below), whose sum is σ = 381702678480. Its totient is φ = 381696840676.

The previous prime is 381699759559. The next prime is 381699759587. The reversal of 381699759577 is 775957996183.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 381699759577 - 2⁷ = 381699759449 is a prime.

It is a super-2 number, since 2×381699759577² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (381699759557) 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, 1253623 + ... + 1528060.

It is an arithmetic number, because the mean of its divisors is an integer number (95425669620).

Almost surely, 2^381699759577 is an apocalyptic number.

It is an amenable number.

381699759577 is a deficient number, since it is larger than the sum of its proper divisors (2918903).

381699759577 is a wasteful number, since it uses less digits than its factorization.

381699759577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2918902.

The product of its digits is 900169200, while the sum is 76.

The spelling of 381699759577 in words is "three hundred eighty-one billion, six hundred ninety-nine million, seven hundred fifty-nine thousand, five hundred seventy-seven".