42998109565950 has 2304 divisors, whose sum is σ = 157759388467200. Its totient is φ = 8138797056000.

The previous prime is 42998109565769. The next prime is 42998109565963. The reversal of 42998109565950 is 5956590189924.

42998109565950 is a `hidden beast` number, since 4 + 2 + 9 + 9 + 8 + 1 + 0 + 9 + 565 + 9 + 50 = 666.

It is a super-3 number, since 3×42998109565950³ (a number of 42 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 1151 ways as a sum of consecutive naturals, for example, 288577916476 + ... + 288577916624.

It is an arithmetic number, because the mean of its divisors is an integer number (68471956800).

Almost surely, 2^{42998109565950} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42998109565950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78879694233600).

42998109565950 is an abundant number, since it is smaller than the sum of its proper divisors (114761278901250).

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

42998109565950 is a wasteful number, since it uses less digits than its factorization.

42998109565950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443 (or 435 counting only the distinct ones).

The product of its (nonzero) digits is 314928000, while the sum is 72.

The spelling of 42998109565950 in words is "forty-two trillion, nine hundred ninety-eight billion, one hundred nine million, five hundred sixty-five thousand, nine hundred fifty".