474988392479 has 4 divisors (see below), whose sum is σ = 490310598720. Its totient is φ = 459666186240.

The previous prime is 474988392469. The next prime is 474988392491. The reversal of 474988392479 is 974293889474.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 474988392479 - 2¹² = 474988388383 is a prime.

It is a super-2 number, since 2×474988392479² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (474988392449) 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, 7661103074 + ... + 7661103135.

It is an arithmetic number, because the mean of its divisors is an integer number (122577649680).

Almost surely, 2^474988392479 is an apocalyptic number.

474988392479 is a deficient number, since it is larger than the sum of its proper divisors (15322206241).

474988392479 is a wasteful number, since it uses less digits than its factorization.

474988392479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15322206240.

The product of its digits is 877879296, while the sum is 74.

The spelling of 474988392479 in words is "four hundred seventy-four billion, nine hundred eighty-eight million, three hundred ninety-two thousand, four hundred seventy-nine".