42505412545646 has 8 divisors (see below), whose sum is σ = 67508596396080. Its totient is φ = 20002547080288.

The previous prime is 42505412545627. The next prime is 42505412545693. The reversal of 42505412545646 is 64654521450524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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, 625079596226 + ... + 625079596293.

It is an arithmetic number, because the mean of its divisors is an integer number (8438574549510).

Almost surely, 2^{42505412545646} is an apocalyptic number.

42505412545646 is a deficient number, since it is larger than the sum of its proper divisors (25003183850434).

42505412545646 is a wasteful number, since it uses less digits than its factorization.

42505412545646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1250159192538.

The product of its (nonzero) digits is 23040000, while the sum is 53.

The spelling of 42505412545646 in words is "forty-two trillion, five hundred five billion, four hundred twelve million, five hundred forty-five thousand, six hundred forty-six".