31464728500 has 48 divisors (see below), whose sum is σ = 68736507840. Its totient is φ = 12582679200.

The previous prime is 31464728483. The next prime is 31464728501. The reversal of 31464728500 is 582746413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31464728501) 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, 3384859 + ... + 3394141.

It is an arithmetic number, because the mean of its divisors is an integer number (1432010580).

Almost surely, 2^31464728500 is an apocalyptic number.

It is an amenable number.

31464728500 is an abundant number, since it is smaller than the sum of its proper divisors (37271779340).

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

31464728500 is a wasteful number, since it uses less digits than its factorization.

31464728500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16081 (or 16069 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The spelling of 31464728500 in words is "thirty-one billion, four hundred sixty-four million, seven hundred twenty-eight thousand, five hundred".