139345813845 has 192 divisors, whose sum is σ = 286365081600. Its totient is φ = 61373168640.

The previous prime is 139345813793. The next prime is 139345813861. The reversal of 139345813845 is 548318543931.

It is a happy number.

139345813845 is a `hidden beast` number, since 13 + 9 + 3 + 4 + 581 + 3 + 8 + 45 = 666.

It is not a de Polignac number, because 139345813845 - 2⁸ = 139345813589 is a prime.

It is a super-2 number, since 2×139345813845² (a number of 23 digits) contains 22 as substring.

Its product of digits (6220800) is a multiple of the sum of its prime factors (800).

It is a junction number, because it is equal to n+sod(n) for n = 139345813791 and 139345813800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 367666866 + ... + 367667244.

It is an arithmetic number, because the mean of its divisors is an integer number (1491484800).

Almost surely, 2^139345813845 is an apocalyptic number.

139345813845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

139345813845 is an abundant number, since it is smaller than the sum of its proper divisors (147019267755).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139345813845 is a wasteful number, since it uses less digits than its factorization.

139345813845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800 (or 797 counting only the distinct ones).

The product of its digits is 6220800, while the sum is 54.

The spelling of 139345813845 in words is "one hundred thirty-nine billion, three hundred forty-five million, eight hundred thirteen thousand, eight hundred forty-five".