42905565454690 has 64 divisors (see below), whose sum is σ = 81418089392640. Its totient is φ = 16234297758720.

The previous prime is 42905565454657. The next prime is 42905565454691. The reversal of 42905565454690 is 9645456550924.

It is a happy number.

It is a super-2 number, since 2×42905565454690² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42905565454691) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 480792375 + ... + 480881605.

It is an arithmetic number, because the mean of its divisors is an integer number (1272157646760).

Almost surely, 2^{42905565454690} is an apocalyptic number.

42905565454690 is a deficient number, since it is larger than the sum of its proper divisors (38512523937950).

42905565454690 is a wasteful number, since it uses less digits than its factorization.

42905565454690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93067.

The product of its (nonzero) digits is 233280000, while the sum is 64.

The spelling of 42905565454690 in words is "forty-two trillion, nine hundred five billion, five hundred sixty-five million, four hundred fifty-four thousand, six hundred ninety".