26436189430 has 24 divisors (see below), whose sum is σ = 55354144608. Its totient is φ = 9063836208.

The previous prime is 26436189401. The next prime is 26436189433. The reversal of 26436189430 is 3498163462.

It is a super-2 number, since 2×26436189430² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26436189433) 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, 26975214 + ... + 26976193.

It is an arithmetic number, because the mean of its divisors is an integer number (2306422692).

Almost surely, 2^26436189430 is an apocalyptic number.

26436189430 is an abundant number, since it is smaller than the sum of its proper divisors (28917955178).

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

26436189430 is a wasteful number, since it uses less digits than its factorization.

26436189430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53951428 (or 53951421 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 46.

The spelling of 26436189430 in words is "twenty-six billion, four hundred thirty-six million, one hundred eighty-nine thousand, four hundred thirty".