42779912853 has 16 divisors (see below), whose sum is σ = 59536834560. Its totient is φ = 27272173104.

The previous prime is 42779912849. The next prime is 42779912863. The reversal of 42779912853 is 35821997724.

It is a happy number.

It is not a de Polignac number, because 42779912853 - 2² = 42779912849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42779912793 and 42779912802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42779912863) 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, 160708 + ... + 333746.

It is an arithmetic number, because the mean of its divisors is an integer number (3721052160).

Almost surely, 2^42779912853 is an apocalyptic number.

It is an amenable number.

42779912853 is a deficient number, since it is larger than the sum of its proper divisors (16756921707).

42779912853 is a wasteful number, since it uses less digits than its factorization.

42779912853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176648.

The product of its digits is 7620480, while the sum is 57.

The spelling of 42779912853 in words is "forty-two billion, seven hundred seventy-nine million, nine hundred twelve thousand, eight hundred fifty-three".