31425623522045 has 4 divisors (see below), whose sum is σ = 37710748226460. Its totient is φ = 25140498817632.

The previous prime is 31425623522021. The next prime is 31425623522107. The reversal of 31425623522045 is 54022532652413.

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 3279510927364 + 28146112594681 = 1810942^2 + 5305291^2 .

It is a cyclic number.

It is not a de Polignac number, because 31425623522045 - 2³⁶ = 31356904045309 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31425623521987 and 31425623522005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3142562352200 + ... + 3142562352209.

It is an arithmetic number, because the mean of its divisors is an integer number (9427687056615).

Almost surely, 2^{31425623522045} is an apocalyptic number.

It is an amenable number.

31425623522045 is a deficient number, since it is larger than the sum of its proper divisors (6285124704415).

31425623522045 is an equidigital number, since it uses as much as digits as its factorization.

31425623522045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6285124704414.

The product of its (nonzero) digits is 1728000, while the sum is 44.

The spelling of 31425623522045 in words is "thirty-one trillion, four hundred twenty-five billion, six hundred twenty-three million, five hundred twenty-two thousand, forty-five".