42020335847880 has 288 divisors, whose sum is σ = 156578042635560. Its totient is φ = 9735027793920.

The previous prime is 42020335847801. The next prime is 42020335847891. The reversal of 42020335847880 is 8874853302024.

42020335847880 is a `hidden beast` number, since 4 + 2 + 0 + 20 + 33 + 584 + 7 + 8 + 8 + 0 = 666.

It can be written as a sum of positive squares in 12 ways, for example, as 3374444085156 + 38645891762724 = 1836966^2 + 6216582^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 19279531 + ... + 21348090.

Almost surely, 2^{42020335847880} is an apocalyptic number.

42020335847880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42020335847880 is an abundant number, since it is smaller than the sum of its proper divisors (114557706787680).

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

42020335847880 is a wasteful number, since it uses less digits than its factorization.

42020335847880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40627681 (or 40627661 counting only the distinct ones).

The product of its (nonzero) digits is 10321920, while the sum is 54.

The spelling of 42020335847880 in words is "forty-two trillion, twenty billion, three hundred thirty-five million, eight hundred forty-seven thousand, eight hundred eighty".