42869998026 has 48 divisors (see below), whose sum is σ = 97039411560. Its totient is φ = 13660617600.

The previous prime is 42869998001. The next prime is 42869998027. The reversal of 42869998026 is 62089996824.

It can be written as a sum of positive squares in 4 ways, for example, as 42641837001 + 228161025 = 206499^2 + 15105^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42869998027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 353845 + ... + 459288.

Almost surely, 2^42869998026 is an apocalyptic number.

42869998026 is an abundant number, since it is smaller than the sum of its proper divisors (54169413534).

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

42869998026 is a wasteful number, since it uses less digits than its factorization.

42869998026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813271 (or 813268 counting only the distinct ones).

The product of its (nonzero) digits is 26873856, while the sum is 63.

The spelling of 42869998026 in words is "forty-two billion, eight hundred sixty-nine million, nine hundred ninety-eight thousand, twenty-six".