42512454464 has 28 divisors (see below), whose sum is σ = 84369456864. Its totient is φ = 21254008704.

The previous prime is 42512454461. The next prime is 42512454473. The reversal of 42512454464 is 46445421524.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42512454461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 705989 + ... + 763835.

It is an arithmetic number, because the mean of its divisors is an integer number (3013194888).

Almost surely, 2^42512454464 is an apocalyptic number.

It is an amenable number.

42512454464 is a deficient number, since it is larger than the sum of its proper divisors (41857002400).

42512454464 is a wasteful number, since it uses less digits than its factorization.

42512454464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69342 (or 69332 counting only the distinct ones).

The product of its digits is 614400, while the sum is 41.

Adding to 42512454464 its reverse (46445421524), we get a palindrome (88957875988).

The spelling of 42512454464 in words is "forty-two billion, five hundred twelve million, four hundred fifty-four thousand, four hundred sixty-four".