31420061673 has 32 divisors (see below), whose sum is σ = 56248507392. Its totient is φ = 15066561600.

The previous prime is 31420061641. The next prime is 31420061807. The reversal of 31420061673 is 37616002413.

It is not a de Polignac number, because 31420061673 - 2⁵ = 31420061641 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (31420061633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5228443 + ... + 5234448.

It is an arithmetic number, because the mean of its divisors is an integer number (1757765856).

Almost surely, 2^31420061673 is an apocalyptic number.

31420061673 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

31420061673 is a deficient number, since it is larger than the sum of its proper divisors (24828445719).

31420061673 is a wasteful number, since it uses less digits than its factorization.

31420061673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10462925.

The product of its (nonzero) digits is 18144, while the sum is 33.

The spelling of 31420061673 in words is "thirty-one billion, four hundred twenty million, sixty-one thousand, six hundred seventy-three".