42155310620 has 12 divisors (see below), whose sum is σ = 88526152344. Its totient is φ = 16862124240.

The previous prime is 42155310563. The next prime is 42155310719. The reversal of 42155310620 is 2601355124.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1053882746 + ... + 1053882785.

It is an arithmetic number, because the mean of its divisors is an integer number (7377179362).

Almost surely, 2^42155310620 is an apocalyptic number.

It is an amenable number.

42155310620 is an abundant number, since it is smaller than the sum of its proper divisors (46370841724).

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

42155310620 is a wasteful number, since it uses less digits than its factorization.

42155310620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2107765540 (or 2107765538 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 42155310620 its reverse (2601355124), we get a palindrome (44756665744).

The spelling of 42155310620 in words is "forty-two billion, one hundred fifty-five million, three hundred ten thousand, six hundred twenty".