7213180399920 has 240 divisors, whose sum is σ = 27817337433600. Its totient is φ = 1656615559680.

The previous prime is 7213180399883. The next prime is 7213180399927. The reversal of 7213180399920 is 299930813127.

7213180399920 is a `hidden beast` number, since 7 + 213 + 18 + 0 + 399 + 9 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a super-2 number, since 2×7213180399920² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7213180399927) 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, 23816760 + ... + 24117719.

It is an arithmetic number, because the mean of its divisors is an integer number (115905572640).

Almost surely, 2^{7213180399920} is an apocalyptic number.

It is an amenable number.

7213180399920 is an abundant number, since it is smaller than the sum of its proper divisors (20604157033680).

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

7213180399920 is a wasteful number, since it uses less digits than its factorization.

7213180399920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47934528 (or 47934519 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 54.

The spelling of 7213180399920 in words is "seven trillion, two hundred thirteen billion, one hundred eighty million, three hundred ninety-nine thousand, nine hundred twenty".