78420224054 has 32 divisors (see below), whose sum is σ = 118776865536. Its totient is φ = 38830583520.

The previous prime is 78420224039. The next prime is 78420224081. The reversal of 78420224054 is 45042202487.

It is a super-2 number, since 2×78420224054² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78420223999 and 78420224017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96695309 + ... + 96696119.

It is an arithmetic number, because the mean of its divisors is an integer number (3711777048).

Almost surely, 2^78420224054 is an apocalyptic number.

78420224054 is a deficient number, since it is larger than the sum of its proper divisors (40356641482).

78420224054 is a wasteful number, since it uses less digits than its factorization.

78420224054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1940.

The product of its (nonzero) digits is 143360, while the sum is 38.

The spelling of 78420224054 in words is "seventy-eight billion, four hundred twenty million, two hundred twenty-four thousand, fifty-four".