26400164630 has 32 divisors (see below), whose sum is σ = 55417262400. Its totient is φ = 9051483840.

The previous prime is 26400164599. The next prime is 26400164633. The reversal of 26400164630 is 3646100462.

It is a super-2 number, since 2×26400164630² (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 (26400164633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3844991 + ... + 3851850.

It is an arithmetic number, because the mean of its divisors is an integer number (1731789450).

Almost surely, 2^26400164630 is an apocalyptic number.

26400164630 is an abundant number, since it is smaller than the sum of its proper divisors (29017097770).

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

26400164630 is an equidigital number, since it uses as much as digits as its factorization.

26400164630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7696869 (or 7696855 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

The spelling of 26400164630 in words is "twenty-six billion, four hundred million, one hundred sixty-four thousand, six hundred thirty".