730774781664 has 48 divisors (see below), whose sum is σ = 1931158227600. Its totient is φ = 241956746240.

The previous prime is 730774781663. The next prime is 730774781669. The reversal of 730774781664 is 466187477037.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 730774781598 and 730774781607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730774781663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25530117 + ... + 25558724.

It is an arithmetic number, because the mean of its divisors is an integer number (40232463075).

Almost surely, 2^730774781664 is an apocalyptic number.

It is an amenable number.

730774781664 is an abundant number, since it is smaller than the sum of its proper divisors (1200383445936).

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

730774781664 is a wasteful number, since it uses less digits than its factorization.

730774781664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51089003 (or 51088995 counting only the distinct ones).

The product of its (nonzero) digits is 33191424, while the sum is 60.

The spelling of 730774781664 in words is "seven hundred thirty billion, seven hundred seventy-four million, seven hundred eighty-one thousand, six hundred sixty-four".