42778753054 has 4 divisors (see below), whose sum is σ = 64168129584. Its totient is φ = 21389376526.

The previous prime is 42778753033. The next prime is 42778753057. The reversal of 42778753054 is 45035787724.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×42778753054² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42778752992 and 42778753010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42778753057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10694688262 + ... + 10694688265.

It is an arithmetic number, because the mean of its divisors is an integer number (16042032396).

Almost surely, 2^42778753054 is an apocalyptic number.

42778753054 is a deficient number, since it is larger than the sum of its proper divisors (21389376530).

42778753054 is a wasteful number, since it uses less digits than its factorization.

42778753054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21389376529.

The product of its (nonzero) digits is 6585600, while the sum is 52.

The spelling of 42778753054 in words is "forty-two billion, seven hundred seventy-eight million, seven hundred fifty-three thousand, fifty-four".