291472484160 has 448 divisors, whose sum is σ = 1090868373504. Its totient is φ = 65005363200.

The previous prime is 291472484099. The next prime is 291472484179. The reversal of 291472484160 is 61484274192.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

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, 42690667 + ... + 42697493.

It is an arithmetic number, because the mean of its divisors is an integer number (2434974048).

Almost surely, 2^291472484160 is an apocalyptic number.

291472484160 is a gapful number since it is divisible by the number (20) 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 291472484160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (545434186752).

291472484160 is an abundant number, since it is smaller than the sum of its proper divisors (799395889344).

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

291472484160 is a wasteful number, since it uses less digits than its factorization.

291472484160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7182 (or 7172 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 48.

The spelling of 291472484160 in words is "two hundred ninety-one billion, four hundred seventy-two million, four hundred eighty-four thousand, one hundred sixty".