26265620515552 has 48 divisors (see below), whose sum is σ = 56440574314992. Its totient is φ = 11932741739520.

The previous prime is 26265620515499. The next prime is 26265620515559. The reversal of 26265620515552 is 25551502656262.

It is a super-2 number, since 2×26265620515552² (a number of 28 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 26265620515552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26265620515559) 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, 18620733 + ... + 19981564.

It is an arithmetic number, because the mean of its divisors is an integer number (1175845298229).

Almost surely, 2^{26265620515552} is an apocalyptic number.

26265620515552 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

26265620515552 is an abundant number, since it is smaller than the sum of its proper divisors (30174953799440).

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

26265620515552 is a wasteful number, since it uses less digits than its factorization.

26265620515552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38604251 (or 38604243 counting only the distinct ones).

The product of its (nonzero) digits is 10800000, while the sum is 52.

The spelling of 26265620515552 in words is "twenty-six trillion, two hundred sixty-five billion, six hundred twenty million, five hundred fifteen thousand, five hundred fifty-two".