64454526441 has 64 divisors (see below), whose sum is σ = 99712189440. Its totient is φ = 41118347520.

The previous prime is 64454526413. The next prime is 64454526457. The reversal of 64454526441 is 14462545446.

64454526441 is a `hidden beast` number, since 6 + 4 + 4 + 545 + 2 + 64 + 41 = 666.

It is not a de Polignac number, because 64454526441 - 2⁶ = 64454526377 is a prime.

It is a super-3 number, since 3×64454526441³ (a number of 33 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (64454526641) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13389351 + ... + 13394163.

It is an arithmetic number, because the mean of its divisors is an integer number (1558002960).

Almost surely, 2^64454526441 is an apocalyptic number.

64454526441 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

64454526441 is a deficient number, since it is larger than the sum of its proper divisors (35257662999).

64454526441 is a wasteful number, since it uses less digits than its factorization.

64454526441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5103 (or 5097 counting only the distinct ones).

The product of its digits is 1843200, while the sum is 45.

The spelling of 64454526441 in words is "sixty-four billion, four hundred fifty-four million, five hundred twenty-six thousand, four hundred forty-one".