78243625218022 has 16 divisors (see below), whose sum is σ = 129354971779152. Its totient is φ = 35198631774720.

The previous prime is 78243625218013. The next prime is 78243625218037. The reversal of 78243625218022 is 22081252634287.

It is a super-2 number, since 2×78243625218022² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18332618583 + ... + 18332622850.

It is an arithmetic number, because the mean of its divisors is an integer number (8084685736197).

Almost surely, 2^{78243625218022} is an apocalyptic number.

78243625218022 is a deficient number, since it is larger than the sum of its proper divisors (51111346561130).

78243625218022 is a wasteful number, since it uses less digits than its factorization.

78243625218022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36665241543.

The product of its (nonzero) digits is 5160960, while the sum is 52.

The spelling of 78243625218022 in words is "seventy-eight trillion, two hundred forty-three billion, six hundred twenty-five million, two hundred eighteen thousand, twenty-two".