31793087439901 has 8 divisors (see below), whose sum is σ = 31980822373080. Its totient is φ = 31605777728832.

The previous prime is 31793087439889. The next prime is 31793087439923. The reversal of 31793087439901 is 10993478039713.

It can be written as a sum of positive squares in 4 ways, for example, as 4514392584100 + 27278694855801 = 2124710^2 + 5222901^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31793087439901 is a prime.

It is a super-2 number, since 2×31793087439901² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31793087439941) 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, 106155550 + ... + 106454623.

It is an arithmetic number, because the mean of its divisors is an integer number (3997602796635).

Almost surely, 2^{31793087439901} is an apocalyptic number.

It is an amenable number.

31793087439901 is a deficient number, since it is larger than the sum of its proper divisors (187734933179).

31793087439901 is a wasteful number, since it uses less digits than its factorization.

31793087439901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212611055.

The product of its (nonzero) digits is 30862944, while the sum is 64.

The spelling of 31793087439901 in words is "thirty-one trillion, seven hundred ninety-three billion, eighty-seven million, four hundred thirty-nine thousand, nine hundred one".