26620402434 has 16 divisors (see below), whose sum is σ = 53263119360. Its totient is φ = 8869748400.

The previous prime is 26620402433. The next prime is 26620402439. The reversal of 26620402434 is 43420402662.

It is a super-2 number, since 2×26620402434² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 26620402395 and 26620402404.

It is not an unprimeable number, because it can be changed into a prime (26620402433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 914242 + ... + 942909.

It is an arithmetic number, because the mean of its divisors is an integer number (3328944960).

Almost surely, 2^26620402434 is an apocalyptic number.

26620402434 is an abundant number, since it is smaller than the sum of its proper divisors (26642716926).

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

26620402434 is a wasteful number, since it uses less digits than its factorization.

26620402434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1859545.

The product of its (nonzero) digits is 55296, while the sum is 33.

The spelling of 26620402434 in words is "twenty-six billion, six hundred twenty million, four hundred two thousand, four hundred thirty-four".