26451751063 has 4 divisors (see below), whose sum is σ = 27363880440. Its totient is φ = 25539621688.

The previous prime is 26451751049. The next prime is 26451751093. The reversal of 26451751063 is 36015715462.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36015715462 = 2 ⋅18007857731.

It is a cyclic number.

It is not a de Polignac number, because 26451751063 - 2⁵ = 26451751031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26451751033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 456064645 + ... + 456064702.

It is an arithmetic number, because the mean of its divisors is an integer number (6840970110).

Almost surely, 2^26451751063 is an apocalyptic number.

26451751063 is a deficient number, since it is larger than the sum of its proper divisors (912129377).

26451751063 is an equidigital number, since it uses as much as digits as its factorization.

26451751063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912129376.

The product of its (nonzero) digits is 151200, while the sum is 40.

The spelling of 26451751063 in words is "twenty-six billion, four hundred fifty-one million, seven hundred fifty-one thousand, sixty-three".