42890867257 has 8 divisors (see below), whose sum is σ = 49019548032. Its totient is φ = 36762540000.

The previous prime is 42890867203. The next prime is 42890867263. The reversal of 42890867257 is 75276809824.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42890867257 - 2¹¹ = 42890865209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42890867057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 266757 + ... + 396157.

It is an arithmetic number, because the mean of its divisors is an integer number (6127443504).

Almost surely, 2^42890867257 is an apocalyptic number.

It is an amenable number.

42890867257 is a deficient number, since it is larger than the sum of its proper divisors (6128680775).

42890867257 is a wasteful number, since it uses less digits than its factorization.

42890867257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176759.

The product of its (nonzero) digits is 13547520, while the sum is 58.

The spelling of 42890867257 in words is "forty-two billion, eight hundred ninety million, eight hundred sixty-seven thousand, two hundred fifty-seven".