31272949080 has 192 divisors, whose sum is σ = 110525070240. Its totient is φ = 7636709376.

The previous prime is 31272949069. The next prime is 31272949087. The reversal of 31272949080 is 8094927213.

31272949080 is a `hidden beast` number, since 3 + 12 + 72 + 9 + 490 + 80 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31272949087) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 157387 + ... + 295493.

Almost surely, 2^31272949080 is an apocalyptic number.

31272949080 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 31272949080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55262535120).

31272949080 is an abundant number, since it is smaller than the sum of its proper divisors (79252121160).

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

31272949080 is a wasteful number, since it uses less digits than its factorization.

31272949080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138178 (or 138171 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 31272949080 in words is "thirty-one billion, two hundred seventy-two million, nine hundred forty-nine thousand, eighty".