31486054860 has 192 divisors, whose sum is σ = 106938572160. Its totient is φ = 7644119040.

The previous prime is 31486054849. The next prime is 31486054879. The reversal of 31486054860 is 6845068413.

31486054860 is a `hidden beast` number, since 3 + 1 + 48 + 6 + 0 + 548 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 481740 + ... + 543180.

It is an arithmetic number, because the mean of its divisors is an integer number (556971730).

Almost surely, 2^31486054860 is an apocalyptic number.

31486054860 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31486054860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53469286080).

31486054860 is an abundant number, since it is smaller than the sum of its proper divisors (75452517300).

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

31486054860 is a wasteful number, since it uses less digits than its factorization.

31486054860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61545 (or 61537 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The spelling of 31486054860 in words is "thirty-one billion, four hundred eighty-six million, fifty-four thousand, eight hundred sixty".