424318412778 has 48 divisors (see below), whose sum is σ = 970838772960. Its totient is φ = 122879533824.

The previous prime is 424318412731. The next prime is 424318412809. The reversal of 424318412778 is 877214813424.

It is a happy number.

It is a super-2 number, since 2×424318412778² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 424318412778.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9389188 + ... + 9434271.

It is an arithmetic number, because the mean of its divisors is an integer number (20225807770).

Almost surely, 2^424318412778 is an apocalyptic number.

424318412778 is an abundant number, since it is smaller than the sum of its proper divisors (546520360182).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

424318412778 is a wasteful number, since it uses less digits than its factorization.

424318412778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18823511 (or 18823494 counting only the distinct ones).

The product of its digits is 2408448, while the sum is 51.

The spelling of 424318412778 in words is "four hundred twenty-four billion, three hundred eighteen million, four hundred twelve thousand, seven hundred seventy-eight".