42773642673444 has 72 divisors (see below), whose sum is σ = 111986856628920. Its totient is φ = 13749461913600.

The previous prime is 42773642673413. The next prime is 42773642673451. The reversal of 42773642673444 is 44437624637724.

42773642673444 is a `hidden beast` number, since 4 + 2 + 7 + 7 + 364 + 267 + 3 + 4 + 4 + 4 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 29663172900 + 42743979500544 = 172230^2 + 6537888^2 .

It is a super-2 number, since 2×42773642673444² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24094717 + ... + 25808964.

It is an arithmetic number, because the mean of its divisors is an integer number (1555373008735).

Almost surely, 2^{42773642673444} is an apocalyptic number.

It is an amenable number.

42773642673444 is an abundant number, since it is smaller than the sum of its proper divisors (69213213955476).

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

42773642673444 is a wasteful number, since it uses less digits than its factorization.

42773642673444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49904541 (or 49904536 counting only the distinct ones).

The product of its digits is 455196672, while the sum is 63.

The spelling of 42773642673444 in words is "forty-two trillion, seven hundred seventy-three billion, six hundred forty-two million, six hundred seventy-three thousand, four hundred forty-four".