64726534461 has 8 divisors (see below), whose sum is σ = 86319761184. Its totient is φ = 43142165360.

The previous prime is 64726534441. The next prime is 64726534487. The reversal of 64726534461 is 16443562746.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64726534461 - 2⁷ = 64726534333 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64726534461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64726534421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2197335 + ... + 2226596.

It is an arithmetic number, because the mean of its divisors is an integer number (10789970148).

Almost surely, 2^64726534461 is an apocalyptic number.

It is an amenable number.

64726534461 is a deficient number, since it is larger than the sum of its proper divisors (21593226723).

64726534461 is a wasteful number, since it uses less digits than its factorization.

64726534461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4428811.

The product of its digits is 2903040, while the sum is 48.

The spelling of 64726534461 in words is "sixty-four billion, seven hundred twenty-six million, five hundred thirty-four thousand, four hundred sixty-one".