42725977778312 has 16 divisors (see below), whose sum is σ = 80140890186000. Its totient is φ = 21355073728720.

The previous prime is 42725977778251. The next prime is 42725977778353. The reversal of 42725977778312 is 21387777952724.

It is a super-2 number, since 2×42725977778312² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 989372114 + ... + 989415297.

It is an arithmetic number, because the mean of its divisors is an integer number (5008805636625).

Almost surely, 2^{42725977778312} is an apocalyptic number.

It is an amenable number.

42725977778312 is a deficient number, since it is larger than the sum of its proper divisors (37414912407688).

42725977778312 is a wasteful number, since it uses less digits than its factorization.

42725977778312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1978790116 (or 1978790112 counting only the distinct ones).

The product of its digits is 580849920, while the sum is 71.

The spelling of 42725977778312 in words is "forty-two trillion, seven hundred twenty-five billion, nine hundred seventy-seven million, seven hundred seventy-eight thousand, three hundred twelve".