1345631025494 has 16 divisors (see below), whose sum is σ = 2327959312800. Its totient is φ = 571408193664.

The previous prime is 1345631025493. The next prime is 1345631025517. The reversal of 1345631025494 is 4945201365431.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345631025493) 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, 440899859 + ... + 440902910.

It is an arithmetic number, because the mean of its divisors is an integer number (145497457050).

Almost surely, 2^{1345631025494} is an apocalyptic number.

1345631025494 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1345631025494 is a deficient number, since it is larger than the sum of its proper divisors (982328287306).

1345631025494 is a wasteful number, since it uses less digits than its factorization.

1345631025494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881802887.

The product of its (nonzero) digits is 1555200, while the sum is 47.

The spelling of 1345631025494 in words is "one trillion, three hundred forty-five billion, six hundred thirty-one million, twenty-five thousand, four hundred ninety-four".