379528220649 has 16 divisors (see below), whose sum is σ = 528234236480. Its totient is φ = 242144717760.

The previous prime is 379528220641. The next prime is 379528220707. The reversal of 379528220649 is 946022825973.

It is not a de Polignac number, because 379528220649 - 2³ = 379528220641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (379528220641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28019239 + ... + 28032780.

It is an arithmetic number, because the mean of its divisors is an integer number (33014639780).

Almost surely, 2^379528220649 is an apocalyptic number.

It is an amenable number.

379528220649 is a deficient number, since it is larger than the sum of its proper divisors (148706015831).

379528220649 is a wasteful number, since it uses less digits than its factorization.

379528220649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56052120.

The product of its (nonzero) digits is 13063680, while the sum is 57.

The spelling of 379528220649 in words is "three hundred seventy-nine billion, five hundred twenty-eight million, two hundred twenty thousand, six hundred forty-nine".