26340532251 has 16 divisors (see below), whose sum is σ = 38320550400. Its totient is φ = 15961021920.

The previous prime is 26340532247. The next prime is 26340532271. The reversal of 26340532251 is 15223504362.

It is a happy number.

It is not a de Polignac number, because 26340532251 - 2² = 26340532247 is a prime.

It is a super-2 number, since 2×26340532251² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (26340532201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115950 + ... + 257148.

It is an arithmetic number, because the mean of its divisors is an integer number (2395034400).

Almost surely, 2^26340532251 is an apocalyptic number.

26340532251 is a deficient number, since it is larger than the sum of its proper divisors (11980018149).

26340532251 is a wasteful number, since it uses less digits than its factorization.

26340532251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146866.

The product of its (nonzero) digits is 43200, while the sum is 33.

The spelling of 26340532251 in words is "twenty-six billion, three hundred forty million, five hundred thirty-two thousand, two hundred fifty-one".