31610645045 has 32 divisors (see below), whose sum is σ = 45071251200. Its totient is φ = 21266831040.

The previous prime is 31610645029. The next prime is 31610645057. The reversal of 31610645045 is 54054601613.

It is not a de Polignac number, because 31610645045 - 2⁴ = 31610645029 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 31610644996 and 31610645014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82991 + ... + 264780.

It is an arithmetic number, because the mean of its divisors is an integer number (1408476600).

Almost surely, 2^31610645045 is an apocalyptic number.

31610645045 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

31610645045 is a deficient number, since it is larger than the sum of its proper divisors (13460606155).

31610645045 is an equidigital number, since it uses as much as digits as its factorization.

31610645045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347850 (or 347836 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 31610645045 in words is "thirty-one billion, six hundred ten million, six hundred forty-five thousand, forty-five".