905434434554 has 32 divisors (see below), whose sum is σ = 1470569748480. Its totient is φ = 415628160192.

The previous prime is 905434434533. The next prime is 905434434607. The reversal of 905434434554 is 455434434509.

It is a super-2 number, since 2×905434434554² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3995207 + ... + 4215749.

It is an arithmetic number, because the mean of its divisors is an integer number (45955304640).

Almost surely, 2^905434434554 is an apocalyptic number.

905434434554 is a deficient number, since it is larger than the sum of its proper divisors (565135313926).

905434434554 is a wasteful number, since it uses less digits than its factorization.

905434434554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221414.

The product of its (nonzero) digits is 10368000, while the sum is 50.

The spelling of 905434434554 in words is "nine hundred five billion, four hundred thirty-four million, four hundred thirty-four thousand, five hundred fifty-four".