26431262652 has 24 divisors (see below), whose sum is σ = 65300767056.
Its totient is φ = 8292160768.
The previous prime is 26431262651. The next prime is 26431262707. The reversal of 26431262652 is 25626213462.
It is a super-2 number, since 2×264312626522 (a number of 22 digits) contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 26431262652.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (26431262651) 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, 64782303 + ... + 64782710.
It is an arithmetic number, because the mean of its divisors is an integer number (2720865294).
Almost surely, 226431262652 is an apocalyptic number.
It is an amenable number.
26431262652 is an abundant number, since it is smaller than the sum of its proper divisors (38869504404).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
26431262652 is a wasteful number, since it uses less digits than its factorization.
26431262652 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 129565037 (or 129565035 counting only the distinct ones).
The product of its digits is 207360, while the sum is 39.
The spelling of 26431262652 in words is "twenty-six billion, four hundred thirty-one million, two hundred sixty-two thousand, six hundred fifty-two".