42999866496 has 256 divisors, whose sum is σ = 129396384000. Its totient is φ = 14055358464.

The previous prime is 42999866489. The next prime is 42999866531. The reversal of 42999866496 is 69466899924.

42999866496 is a `hidden beast` number, since 42 + 9 + 9 + 98 + 6 + 6 + 496 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

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 31 ways as a sum of consecutive naturals, for example, 40223850 + ... + 40224918.

It is an arithmetic number, because the mean of its divisors is an integer number (505454625).

Almost surely, 2^42999866496 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 42999866496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64698192000).

42999866496 is an abundant number, since it is smaller than the sum of its proper divisors (86396517504).

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

42999866496 is a wasteful number, since it uses less digits than its factorization.

42999866496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1308 (or 1290 counting only the distinct ones).

The product of its digits is 362797056, while the sum is 72.

The spelling of 42999866496 in words is "forty-two billion, nine hundred ninety-nine million, eight hundred sixty-six thousand, four hundred ninety-six".