64904740450 has 96 divisors (see below), whose sum is σ = 135071229888. Its totient is φ = 22998528000.

The previous prime is 64904740441. The next prime is 64904740463. The reversal of 64904740450 is 5404740946.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 64904740397 and 64904740406.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32177842 + ... + 32179858.

It is an arithmetic number, because the mean of its divisors is an integer number (1406991978).

Almost surely, 2^64904740450 is an apocalyptic number.

64904740450 is an abundant number, since it is smaller than the sum of its proper divisors (70166489438).

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

64904740450 is a wasteful number, since it uses less digits than its factorization.

64904740450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3508 (or 3503 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 43.

The spelling of 64904740450 in words is "sixty-four billion, nine hundred four million, seven hundred forty thousand, four hundred fifty".