428637783379 has 16 divisors (see below), whose sum is σ = 463873646880. Its totient is φ = 393725928960.

The previous prime is 428637783377. The next prime is 428637783383. The reversal of 428637783379 is 973387736824.

It is not a de Polignac number, because 428637783379 - 2¹ = 428637783377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428637783377) 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, 27523707 + ... + 27539275.

It is an arithmetic number, because the mean of its divisors is an integer number (28992102930).

Almost surely, 2^428637783379 is an apocalyptic number.

428637783379 is a deficient number, since it is larger than the sum of its proper divisors (35235863501).

428637783379 is a wasteful number, since it uses less digits than its factorization.

428637783379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25830.

The product of its digits is 256048128, while the sum is 67.

The spelling of 428637783379 in words is "four hundred twenty-eight billion, six hundred thirty-seven million, seven hundred eighty-three thousand, three hundred seventy-nine".