42728479479 has 48 divisors (see below), whose sum is σ = 76352643840. Its totient is φ = 23131170000.

The previous prime is 42728479463. The next prime is 42728479483. The reversal of 42728479479 is 97497482724.

It is not a de Polignac number, because 42728479479 - 2⁴ = 42728479463 is a prime.

It is a super-2 number, since 2×42728479479² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42728479429) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 244897 + ... + 381354.

It is an arithmetic number, because the mean of its divisors is an integer number (1590680080).

Almost surely, 2^42728479479 is an apocalyptic number.

42728479479 is a deficient number, since it is larger than the sum of its proper divisors (33624164361).

42728479479 is a wasteful number, since it uses less digits than its factorization.

42728479479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626305 (or 626280 counting only the distinct ones).

The product of its digits is 56899584, while the sum is 63.

The spelling of 42728479479 in words is "forty-two billion, seven hundred twenty-eight million, four hundred seventy-nine thousand, four hundred seventy-nine".