26697466840 has 32 divisors (see below), whose sum is σ = 65530146960. Its totient is φ = 9708169600.

The previous prime is 26697466819. The next prime is 26697466891. The reversal of 26697466840 is 4866479662.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30337591 + ... + 30338470.

Almost surely, 2^26697466840 is an apocalyptic number.

26697466840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26697466840 is an abundant number, since it is smaller than the sum of its proper divisors (38832680120).

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

26697466840 is a wasteful number, since it uses less digits than its factorization.

26697466840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60676083 (or 60676079 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 58.

The spelling of 26697466840 in words is "twenty-six billion, six hundred ninety-seven million, four hundred sixty-six thousand, eight hundred forty".