64187426565260 has 96 divisors (see below), whose sum is σ = 136093540347072. Its totient is φ = 25428184104960.

The previous prime is 64187426565253. The next prime is 64187426565307. The reversal of 64187426565260 is 6256562478146.

It is a super-2 number, since 2×64187426565260² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64187426565193 and 64187426565202.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3944404484 + ... + 3944420756.

It is an arithmetic number, because the mean of its divisors is an integer number (1417641045282).

Almost surely, 2^{64187426565260} is an apocalyptic number.

It is an amenable number.

64187426565260 is an abundant number, since it is smaller than the sum of its proper divisors (71906113781812).

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

64187426565260 is a wasteful number, since it uses less digits than its factorization.

64187426565260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19323 (or 19321 counting only the distinct ones).

The product of its (nonzero) digits is 116121600, while the sum is 62.

The spelling of 64187426565260 in words is "sixty-four trillion, one hundred eighty-seven billion, four hundred twenty-six million, five hundred sixty-five thousand, two hundred sixty".