31436444466 has 64 divisors (see below), whose sum is σ = 80075823360. Its totient is φ = 8955152640.

The previous prime is 31436444461. The next prime is 31436444477. The reversal of 31436444466 is 66444463413.

31436444466 is a `hidden beast` number, since 3 + 143 + 6 + 4 + 44 + 466 = 666.

It is not an unprimeable number, because it can be changed into a prime (31436444461) 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, 3996 + ... + 250776.

It is an arithmetic number, because the mean of its divisors is an integer number (1251184740).

Almost surely, 2^31436444466 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31436444466, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40037911680).

31436444466 is an abundant number, since it is smaller than the sum of its proper divisors (48639378894).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31436444466 is a wasteful number, since it uses less digits than its factorization.

31436444466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247136 (or 247130 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 45.

The spelling of 31436444466 in words is "thirty-one billion, four hundred thirty-six million, four hundred forty-four thousand, four hundred sixty-six".