63125290397 has 4 divisors (see below), whose sum is σ = 67981081980. Its totient is φ = 58269498816.

The previous prime is 63125290367. The next prime is 63125290427. The reversal of 63125290397 is 79309252136.

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

It is an interprime number because it is at equal distance from previous prime (63125290367) and next prime (63125290427).

It can be written as a sum of positive squares in 2 ways, for example, as 9491825476 + 53633464921 = 97426^2 + 231589^2 .

It is a cyclic number.

It is not a de Polignac number, because 63125290397 - 2⁸ = 63125290141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63125290367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2427895772 + ... + 2427895797.

It is an arithmetic number, because the mean of its divisors is an integer number (16995270495).

Almost surely, 2^63125290397 is an apocalyptic number.

It is an amenable number.

63125290397 is a deficient number, since it is larger than the sum of its proper divisors (4855791583).

63125290397 is a wasteful number, since it uses less digits than its factorization.

63125290397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4855791582.

The product of its (nonzero) digits is 612360, while the sum is 47.

The spelling of 63125290397 in words is "sixty-three billion, one hundred twenty-five million, two hundred ninety thousand, three hundred ninety-seven".