26690148128 has 48 divisors (see below), whose sum is σ = 61070708160. Its totient is φ = 11244754176.

The previous prime is 26690148119. The next prime is 26690148137. The reversal of 26690148128 is 82184109662.

It is an interprime number because it is at equal distance from previous prime (26690148119) and next prime (26690148137).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 996551 + ... + 1022982.

It is an arithmetic number, because the mean of its divisors is an integer number (1272306420).

Almost surely, 2^26690148128 is an apocalyptic number.

26690148128 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

26690148128 is an abundant number, since it is smaller than the sum of its proper divisors (34380560032).

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

26690148128 is a wasteful number, since it uses less digits than its factorization.

26690148128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2019609 (or 2019601 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 47.

The spelling of 26690148128 in words is "twenty-six billion, six hundred ninety million, one hundred forty-eight thousand, one hundred twenty-eight".