31354245705 has 32 divisors (see below), whose sum is σ = 50308352640. Its totient is φ = 16675153920.

The previous prime is 31354245677. The next prime is 31354245709. The reversal of 31354245705 is 50754245313.

It is not a de Polignac number, because 31354245705 - 2⁶ = 31354245641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31354245709) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 10308985 + ... + 10312025.

It is an arithmetic number, because the mean of its divisors is an integer number (1572136020).

Almost surely, 2^31354245705 is an apocalyptic number.

It is an amenable number.

31354245705 is a deficient number, since it is larger than the sum of its proper divisors (18954106935).

31354245705 is a wasteful number, since it uses less digits than its factorization.

31354245705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4761.

The product of its (nonzero) digits is 252000, while the sum is 39.

The spelling of 31354245705 in words is "thirty-one billion, three hundred fifty-four million, two hundred forty-five thousand, seven hundred five".