64826489926 has 16 divisors (see below), whose sum is σ = 106265510208. Its totient is φ = 29414975400.

The previous prime is 64826489911. The next prime is 64826489951. The reversal of 64826489926 is 62998462846.

It is a super-2 number, since 2×64826489926² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2567700 + ... + 2592823.

It is an arithmetic number, because the mean of its divisors is an integer number (6641594388).

Almost surely, 2^64826489926 is an apocalyptic number.

64826489926 is a deficient number, since it is larger than the sum of its proper divisors (41439020282).

64826489926 is a wasteful number, since it uses less digits than its factorization.

64826489926 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5161107.

The product of its digits is 71663616, while the sum is 64.

The spelling of 64826489926 in words is "sixty-four billion, eight hundred twenty-six million, four hundred eighty-nine thousand, nine hundred twenty-six".