469777721364 has 576 divisors, whose sum is σ = 1505806848000. Its totient is φ = 123146956800.

The previous prime is 469777721363. The next prime is 469777721411. The reversal of 469777721364 is 463127777964.

469777721364 is a `hidden beast` number, since 469 + 7 + 77 + 72 + 1 + 36 + 4 = 666.

It is a super-2 number, since 2×469777721364² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (469777721363) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 580688992 + ... + 580689800.

It is an arithmetic number, because the mean of its divisors is an integer number (2614248000).

Almost surely, 2^469777721364 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 469777721364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (752903424000).

469777721364 is an abundant number, since it is smaller than the sum of its proper divisors (1036029126636).

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

469777721364 is a wasteful number, since it uses less digits than its factorization.

469777721364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949 (or 930 counting only the distinct ones).

The product of its digits is 74680704, while the sum is 63.

The spelling of 469777721364 in words is "four hundred sixty-nine billion, seven hundred seventy-seven million, seven hundred twenty-one thousand, three hundred sixty-four".