26642466620 has 48 divisors (see below), whose sum is σ = 69754825728. Its totient is φ = 8304144960.

The previous prime is 26642466611. The next prime is 26642466647. The reversal of 26642466620 is 2666424662.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8648612 + ... + 8651691.

It is an arithmetic number, because the mean of its divisors is an integer number (1453225536).

Almost surely, 2^26642466620 is an apocalyptic number.

26642466620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26642466620 is an abundant number, since it is smaller than the sum of its proper divisors (43112359108).

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

26642466620 is a wasteful number, since it uses less digits than its factorization.

26642466620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17300330 (or 17300328 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 44.

The spelling of 26642466620 in words is "twenty-six billion, six hundred forty-two million, four hundred sixty-six thousand, six hundred twenty".