26401465063 has 6 divisors (see below), whose sum is σ = 27343254224. Its totient is φ = 25491068904.

The previous prime is 26401465003. The next prime is 26401465073. The reversal of 26401465063 is 36056410462.

It is a de Polignac number, because none of the positive numbers 2^k-26401465063 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 (26401465003) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15695631 + ... + 15697312.

Almost surely, 2^26401465063 is an apocalyptic number.

26401465063 is a deficient number, since it is larger than the sum of its proper divisors (941789161).

26401465063 is an equidigital number, since it uses as much as digits as its factorization.

26401465063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31393001 (or 31392972 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 26401465063 in words is "twenty-six billion, four hundred one million, four hundred sixty-five thousand, sixty-three".