31045508216436 has 96 divisors (see below), whose sum is σ = 85645882586880. Its totient is φ = 8563968000000.

The previous prime is 31045508216431. The next prime is 31045508216453. The reversal of 31045508216436 is 63461280554013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31045508216431) 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, 71648436 + ... + 72080436.

It is an arithmetic number, because the mean of its divisors is an integer number (892144610280).

Almost surely, 2^{31045508216436} is an apocalyptic number.

It is an amenable number.

31045508216436 is an abundant number, since it is smaller than the sum of its proper divisors (54600374370444).

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

31045508216436 is a wasteful number, since it uses less digits than its factorization.

31045508216436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461545 (or 461543 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 48.

The spelling of 31045508216436 in words is "thirty-one trillion, forty-five billion, five hundred eight million, two hundred sixteen thousand, four hundred thirty-six".