42099718950 has 288 divisors, whose sum is σ = 122064568320. Its totient is φ = 10657785600.

The previous prime is 42099718841. The next prime is 42099718957. The reversal of 42099718950 is 5981799024.

42099718950 is a `hidden beast` number, since 420 + 9 + 97 + 1 + 89 + 50 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42099718957) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 331493787 + ... + 331493913.

Almost surely, 2^42099718950 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42099718950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61032284160).

42099718950 is an abundant number, since it is smaller than the sum of its proper divisors (79964849370).

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

42099718950 is a wasteful number, since it uses less digits than its factorization.

42099718950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357 (or 257 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 54.

The spelling of 42099718950 in words is "forty-two billion, ninety-nine million, seven hundred eighteen thousand, nine hundred fifty".