379291191649 has 4 divisors (see below), whose sum is σ = 379292793264. Its totient is φ = 379289590036.

The previous prime is 379291191637. The next prime is 379291191659. The reversal of 379291191649 is 946191192973.

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 379291191649 - 2⁹ = 379291191137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (379291191659) 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, 367387 + ... + 945280.

It is an arithmetic number, because the mean of its divisors is an integer number (94823198316).

Almost surely, 2^379291191649 is an apocalyptic number.

It is an amenable number.

379291191649 is a deficient number, since it is larger than the sum of its proper divisors (1601615).

379291191649 is a wasteful number, since it uses less digits than its factorization.

379291191649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1601614.

The product of its digits is 6613488, while the sum is 61.

The spelling of 379291191649 in words is "three hundred seventy-nine billion, two hundred ninety-one million, one hundred ninety-one thousand, six hundred forty-nine".