42678477744 has 80 divisors (see below), whose sum is σ = 126245491200. Its totient is φ = 12170396160.

The previous prime is 42678477739. The next prime is 42678477769. The reversal of 42678477744 is 44777487624.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53157 + ... + 296955.

It is an arithmetic number, because the mean of its divisors is an integer number (1578068640).

Almost surely, 2^42678477744 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42678477744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63122745600).

42678477744 is an abundant number, since it is smaller than the sum of its proper divisors (83567013456).

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

42678477744 is a wasteful number, since it uses less digits than its factorization.

42678477744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244338 (or 244332 counting only the distinct ones).

The product of its digits is 59006976, while the sum is 60.

The spelling of 42678477744 in words is "forty-two billion, six hundred seventy-eight million, four hundred seventy-seven thousand, seven hundred forty-four".