1345631026005 has 48 divisors (see below), whose sum is σ = 2671993134720. Its totient is φ = 613677423744.

The previous prime is 1345631025971. The next prime is 1345631026081. The reversal of 1345631026005 is 5006201365431.

1345631026005 is a `hidden beast` number, since 1 + 3 + 45 + 6 + 3 + 1 + 0 + 2 + 600 + 5 = 666.

It is not a de Polignac number, because 1345631026005 - 2⁹ = 1345631025493 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4965682 + ... + 5229651.

It is an arithmetic number, because the mean of its divisors is an integer number (55666523640).

Almost surely, 2^{1345631026005} is an apocalyptic number.

1345631026005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1345631026005 is a deficient number, since it is larger than the sum of its proper divisors (1326362108715).

1345631026005 is a wasteful number, since it uses less digits than its factorization.

1345631026005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10195770 (or 10195767 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The spelling of 1345631026005 in words is "one trillion, three hundred forty-five billion, six hundred thirty-one million, twenty-six thousand, five".