438871768042657 has 8 divisors (see below), whose sum is σ = 444518346666240. Its totient is φ = 433227470413920.

The previous prime is 438871768042649. The next prime is 438871768042663. The reversal of 438871768042657 is 756240867178834.

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 438871768042657 - 2³ = 438871768042649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (438871768042607) 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, 569861428 + ... + 570631045.

It is an arithmetic number, because the mean of its divisors is an integer number (55564793333280).

Almost surely, 2^{438871768042657} is an apocalyptic number.

It is an amenable number.

438871768042657 is a deficient number, since it is larger than the sum of its proper divisors (5646578623583).

438871768042657 is a wasteful number, since it uses less digits than its factorization.

438871768042657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140497423.

The product of its (nonzero) digits is 3034644480, while the sum is 76.

The spelling of 438871768042657 in words is "four hundred thirty-eight trillion, eight hundred seventy-one billion, seven hundred sixty-eight million, forty-two thousand, six hundred fifty-seven".