78228857040567 has 16 divisors (see below), whose sum is σ = 109943459376000. Its totient is φ = 49340841647904.

The previous prime is 78228857040559. The next prime is 78228857040613. The reversal of 78228857040567 is 76504075882287.

It is not a de Polignac number, because 78228857040567 - 2³ = 78228857040559 is a prime.

It is a super-2 number, since 2×78228857040567² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78228857040527) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 928534392 + ... + 928618637.

It is an arithmetic number, because the mean of its divisors is an integer number (6871466211000).

Almost surely, 2^{78228857040567} is an apocalyptic number.

78228857040567 is a deficient number, since it is larger than the sum of its proper divisors (31714602335433).

78228857040567 is a wasteful number, since it uses less digits than its factorization.

78228857040567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1857153790.

The product of its (nonzero) digits is 421478400, while the sum is 69.

The spelling of 78228857040567 in words is "seventy-eight trillion, two hundred twenty-eight billion, eight hundred fifty-seven million, forty thousand, five hundred sixty-seven".