7274369664 has 96 divisors (see below), whose sum is σ = 21185236800. Its totient is φ = 2395544064.

The previous prime is 7274369647. The next prime is 7274369671. The reversal of 7274369664 is 4669634727.

7274369664 is a `hidden beast` number, since 7 + 274 + 369 + 6 + 6 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 7274369664.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57577 + ... + 133655.

It is an arithmetic number, because the mean of its divisors is an integer number (220679550).

Almost surely, 2^7274369664 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 7274369664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10592618400).

7274369664 is an abundant number, since it is smaller than the sum of its proper divisors (13910867136).

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

7274369664 is a wasteful number, since it uses less digits than its factorization.

7274369664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76182 (or 76167 counting only the distinct ones).

The product of its digits is 9144576, while the sum is 54.

The square root of 7274369664 is about 85289.9153710449. The cubic root of 7274369664 is about 1937.6044459768.

The spelling of 7274369664 in words is "seven billion, two hundred seventy-four million, three hundred sixty-nine thousand, six hundred sixty-four".