4915161972 has 216 divisors, whose sum is σ = 15476348160. Its totient is φ = 1358622720.

The previous prime is 4915161967. The next prime is 4915161989. The reversal of 4915161972 is 2791615194.

4915161972 is a `hidden beast` number, since 49 + 1 + 516 + 1 + 97 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1474804 + ... + 1478132.

It is an arithmetic number, because the mean of its divisors is an integer number (71649760).

Almost surely, 2^4915161972 is an apocalyptic number.

4915161972 is a gapful number since it is divisible by the number (42) 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 4915161972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7738174080).

4915161972 is an abundant number, since it is smaller than the sum of its proper divisors (10561186188).

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

4915161972 is a wasteful number, since it uses less digits than its factorization.

4915161972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3393 (or 3372 counting only the distinct ones).

The product of its digits is 136080, while the sum is 45.

The square root of 4915161972 is about 70108.2161518891. The cubic root of 4915161972 is about 1700.2493258306.

The spelling of 4915161972 in words is "four billion, nine hundred fifteen million, one hundred sixty-one thousand, nine hundred seventy-two".