31439750324401 has 4 divisors (see below), whose sum is σ = 31717978203492. Its totient is φ = 31161522445312.

The previous prime is 31439750324387. The next prime is 31439750324407. The reversal of 31439750324401 is 10442305793413.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4924511327376 + 26515238997025 = 2219124^2 + 5149295^2 .

It is a cyclic number.

It is not a de Polignac number, because 31439750324401 - 2²¹ = 31439748227249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31439750324407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139113939376 + ... + 139113939601.

It is an arithmetic number, because the mean of its divisors is an integer number (7929494550873).

Almost surely, 2^{31439750324401} is an apocalyptic number.

It is an amenable number.

31439750324401 is a deficient number, since it is larger than the sum of its proper divisors (278227879091).

31439750324401 is a wasteful number, since it uses less digits than its factorization.

31439750324401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278227879090.

The product of its (nonzero) digits is 1088640, while the sum is 46.

The spelling of 31439750324401 in words is "thirty-one trillion, four hundred thirty-nine billion, seven hundred fifty million, three hundred twenty-four thousand, four hundred one".