26402433428 has 36 divisors (see below), whose sum is σ = 53957049300. Its totient is φ = 11271278592.

The previous prime is 26402433427. The next prime is 26402433433. The reversal of 26402433428 is 82433420462.

It can be written as a sum of positive squares in 2 ways, for example, as 17532937744 + 8869495684 = 132412^2 + 94178^2 .

It is a junction number, because it is equal to n+sod(n) for n = 26402433391 and 26402433400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26402433427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 211703 + ... + 312446.

It is an arithmetic number, because the mean of its divisors is an integer number (1498806925).

Almost surely, 2^26402433428 is an apocalyptic number.

26402433428 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

26402433428 is an abundant number, since it is smaller than the sum of its proper divisors (27554615872).

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

26402433428 is a wasteful number, since it uses less digits than its factorization.

26402433428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524424 (or 524415 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 38.

The spelling of 26402433428 in words is "twenty-six billion, four hundred two million, four hundred thirty-three thousand, four hundred twenty-eight".