31404411605 has 32 divisors (see below), whose sum is σ = 44686736640. Its totient is φ = 20729963520.

The previous prime is 31404411583. The next prime is 31404411607. The reversal of 31404411605 is 50611440413.

It is not a de Polignac number, because 31404411605 - 2⁶ = 31404411541 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31404411607) 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, 296150 + ... + 387960.

It is an arithmetic number, because the mean of its divisors is an integer number (1396460520).

Almost surely, 2^31404411605 is an apocalyptic number.

31404411605 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

31404411605 is a deficient number, since it is larger than the sum of its proper divisors (13282325035).

31404411605 is a wasteful number, since it uses less digits than its factorization.

31404411605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92189.

The product of its (nonzero) digits is 5760, while the sum is 29.

The spelling of 31404411605 in words is "thirty-one billion, four hundred four million, four hundred eleven thousand, six hundred five".