3489972912 has 80 divisors (see below), whose sum is σ = 10033152480. Its totient is φ = 1161508608.

The previous prime is 3489972911. The next prime is 3489972943. The reversal of 3489972912 is 2192799843.

3489972912 is a `hidden beast` number, since 3 + 489 + 9 + 72 + 91 + 2 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (3489972911) 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, 286498 + ... + 298430.

It is an arithmetic number, because the mean of its divisors is an integer number (125414406).

Almost surely, 2^3489972912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3489972912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5016576240).

3489972912 is an abundant number, since it is smaller than the sum of its proper divisors (6543179568).

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

3489972912 is a wasteful number, since it uses less digits than its factorization.

3489972912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12627 (or 12615 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 54.

The square root of 3489972912 is about 59075.9926873853. The cubic root of 3489972912 is about 1516.8431874620.

The spelling of 3489972912 in words is "three billion, four hundred eighty-nine million, nine hundred seventy-two thousand, nine hundred twelve".