26029990548 has 30 divisors (see below), whose sum is σ = 68047537866. Its totient is φ = 8676663408.

The previous prime is 26029990513. The next prime is 26029990639. The reversal of 26029990548 is 84509992062.

It is a happy number.

26029990548 is a `hidden beast` number, since 2 + 6 + 0 + 2 + 9 + 9 + 90 + 548 = 666.

It can be written as a sum of positive squares in only one way, i.e., 19782985104 + 6247005444 = 140652^2 + 79038^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 26029990494 and 26029990503.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 40169415 + ... + 40170062.

Almost surely, 2^26029990548 is an apocalyptic number.

It is an amenable number.

26029990548 is an abundant number, since it is smaller than the sum of its proper divisors (42017547318).

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

26029990548 is a wasteful number, since it uses less digits than its factorization.

26029990548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80339493 (or 80339482 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The spelling of 26029990548 in words is "twenty-six billion, twenty-nine million, nine hundred ninety thousand, five hundred forty-eight".