42510434644 has 6 divisors (see below), whose sum is σ = 74393260634. Its totient is φ = 21255217320.

The previous prime is 42510434639. The next prime is 42510434657. The reversal of 42510434644 is 44643401524.

It can be written as a sum of positive squares in only one way, i.e., 40164969744 + 2345464900 = 200412^2 + 48430^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5313804327 + ... + 5313804334.

Almost surely, 2^42510434644 is an apocalyptic number.

It is an amenable number.

42510434644 is a deficient number, since it is larger than the sum of its proper divisors (31882825990).

42510434644 is a wasteful number, since it uses less digits than its factorization.

42510434644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10627608665 (or 10627608663 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 37.

The spelling of 42510434644 in words is "forty-two billion, five hundred ten million, four hundred thirty-four thousand, six hundred forty-four".