42808902990 has 64 divisors (see below), whose sum is σ = 118738068480. Its totient is φ = 9674945280.

The previous prime is 42808902979. The next prime is 42808902991. The reversal of 42808902990 is 9920980824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42808902991) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1126546 + ... + 1163925.

It is an arithmetic number, because the mean of its divisors is an integer number (1855282320).

Almost surely, 2^42808902990 is an apocalyptic number.

42808902990 is an abundant number, since it is smaller than the sum of its proper divisors (75929165490).

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

42808902990 is a wasteful number, since it uses less digits than its factorization.

42808902990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2290577.

The product of its (nonzero) digits is 746496, while the sum is 51.

The spelling of 42808902990 in words is "forty-two billion, eight hundred eight million, nine hundred two thousand, nine hundred ninety".