26464002464 has 12 divisors (see below), whose sum is σ = 52101004914. Its totient is φ = 13232001216.

The previous prime is 26464002419. The next prime is 26464002491. The reversal of 26464002464 is 46420046462.

It can be written as a sum of positive squares in only one way, i.e., 20914944400 + 5549058064 = 144620^2 + 74492^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 413500007 + ... + 413500070.

Almost surely, 2^26464002464 is an apocalyptic number.

It is an amenable number.

26464002464 is a deficient number, since it is larger than the sum of its proper divisors (25637002450).

26464002464 is an equidigital number, since it uses as much as digits as its factorization.

26464002464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827000087 (or 827000079 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 38.

The spelling of 26464002464 in words is "twenty-six billion, four hundred sixty-four million, two thousand, four hundred sixty-four".