13706324731 has 12 divisors (see below), whose sum is σ = 15148889392. Its totient is φ = 12391434000.

The previous prime is 13706324719. The next prime is 13706324741. The reversal of 13706324731 is 13742360731.

It is a de Polignac number, because none of the positive numbers 2^k-13706324731 is a prime.

It is a super-2 number, since 2×13706324731² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13706324701) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 291015 + ... + 334816.

Almost surely, 2^13706324731 is an apocalyptic number.

13706324731 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13706324731 is a deficient number, since it is larger than the sum of its proper divisors (1442564661).

13706324731 is a wasteful number, since it uses less digits than its factorization.

13706324731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626034 (or 626023 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 37.

The spelling of 13706324731 in words is "thirteen billion, seven hundred six million, three hundred twenty-four thousand, seven hundred thirty-one".