26461600644 has 24 divisors (see below), whose sum is σ = 61747943488. Its totient is φ = 8819932320.

The previous prime is 26461600577. The next prime is 26461600661. The reversal of 26461600644 is 44600616462.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130809 + ... + 264639.

Almost surely, 2^26461600644 is an apocalyptic number.

It is an amenable number.

26461600644 is an abundant number, since it is smaller than the sum of its proper divisors (35286342844).

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

26461600644 is a wasteful number, since it uses less digits than its factorization.

26461600644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150315 (or 150313 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 39.

The spelling of 26461600644 in words is "twenty-six billion, four hundred sixty-one million, six hundred thousand, six hundred forty-four".