64469048340 has 96 divisors (see below), whose sum is σ = 183099248640. Its totient is φ = 16947216000.

The previous prime is 64469048297. The next prime is 64469048353. The reversal of 64469048340 is 4384096446.

It is a self number, because there is not a number n which added to its sum of digits gives 64469048340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1159701 + ... + 1214019.

It is an arithmetic number, because the mean of its divisors is an integer number (1907283840).

Almost surely, 2^64469048340 is an apocalyptic number.

64469048340 is a gapful number since it is divisible by the number (60) 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 64469048340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91549624320).

64469048340 is an abundant number, since it is smaller than the sum of its proper divisors (118630200300).

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

64469048340 is a wasteful number, since it uses less digits than its factorization.

64469048340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54613 (or 54611 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 48.

The spelling of 64469048340 in words is "sixty-four billion, four hundred sixty-nine million, forty-eight thousand, three hundred forty".