31445858602873 has 16 divisors (see below), whose sum is σ = 36943549175232. Its totient is φ = 26388016776000.

The previous prime is 31445858602729. The next prime is 31445858602883. The reversal of 31445858602873 is 37820685854413.

It is a de Polignac number, because none of the positive numbers 2^k-31445858602873 is a prime.

It is a super-3 number, since 3×31445858602873³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31445858602883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51494058 + ... + 52101148.

It is an arithmetic number, because the mean of its divisors is an integer number (2308971823452).

Almost surely, 2^{31445858602873} is an apocalyptic number.

It is an amenable number.

31445858602873 is a deficient number, since it is larger than the sum of its proper divisors (5497690572359).

31445858602873 is a wasteful number, since it uses less digits than its factorization.

31445858602873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969336.

The product of its (nonzero) digits is 154828800, while the sum is 64.

The spelling of 31445858602873 in words is "thirty-one trillion, four hundred forty-five billion, eight hundred fifty-eight million, six hundred two thousand, eight hundred seventy-three".