407534535561 has 64 divisors (see below), whose sum is σ = 567170956800. Its totient is φ = 260111554560.

The previous prime is 407534535557. The next prime is 407534535599. The reversal of 407534535561 is 165535435704.

It is a happy number.

It is not a de Polignac number, because 407534535561 - 2² = 407534535557 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 407534535561.

It is not an unprimeable number, because it can be changed into a prime (407534535361) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 664819491 + ... + 664820103.

It is an arithmetic number, because the mean of its divisors is an integer number (8862046200).

Almost surely, 2^407534535561 is an apocalyptic number.

407534535561 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

407534535561 is a deficient number, since it is larger than the sum of its proper divisors (159636421239).

407534535561 is a wasteful number, since it uses less digits than its factorization.

407534535561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1186.

The product of its (nonzero) digits is 3780000, while the sum is 48.

The spelling of 407534535561 in words is "four hundred seven billion, five hundred thirty-four million, five hundred thirty-five thousand, five hundred sixty-one".