42478577772 has 24 divisors (see below), whose sum is σ = 99133734000. Its totient is φ = 14157089856.

The previous prime is 42478577767. The next prime is 42478577789. The reversal of 42478577772 is 27777587424.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231147 + ... + 372002.

It is an arithmetic number, because the mean of its divisors is an integer number (4130572250).

Almost surely, 2^42478577772 is an apocalyptic number.

It is an amenable number.

42478577772 is an abundant number, since it is smaller than the sum of its proper divisors (56655156228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42478577772 is a wasteful number, since it uses less digits than its factorization.

42478577772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609025 (or 609023 counting only the distinct ones).

The product of its digits is 43025920, while the sum is 60.

The spelling of 42478577772 in words is "forty-two billion, four hundred seventy-eight million, five hundred seventy-seven thousand, seven hundred seventy-two".