64546226436 has 48 divisors (see below), whose sum is σ = 151235771904. Its totient is φ = 21425796096.

The previous prime is 64546226431. The next prime is 64546226441. The reversal of 64546226436 is 63462264546.

It is an interprime number because it is at equal distance from previous prime (64546226431) and next prime (64546226441).

It is not an unprimeable number, because it can be changed into a prime (64546226431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7551181 + ... + 7559723.

It is an arithmetic number, because the mean of its divisors is an integer number (3150745248).

Almost surely, 2^64546226436 is an apocalyptic number.

It is an amenable number.

64546226436 is an abundant number, since it is smaller than the sum of its proper divisors (86689545468).

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

64546226436 is a wasteful number, since it uses less digits than its factorization.

64546226436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11100 (or 11098 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 48.

The spelling of 64546226436 in words is "sixty-four billion, five hundred forty-six million, two hundred twenty-six thousand, four hundred thirty-six".